Niels N. Sørensen

  1. 2015
  2. Published
  3. 2014
  4. Published

    A CFD code comparison of wind turbine wakes. / Laan, van der, Paul Maarten; Storey, R. C.; Sørensen, Niels N.; Norris, S.E.; Cater, J. E.

    In: Journal of Physics: Conference Series (Online), Vol. 524, No. 1, 012140, 2014.

    Publication: Research - peer-reviewConference article – Annual report year: 2014

  5. E-pub ahead of print
  6. Published
  7. Published
  8. Published

    Comprehensive Aerodynamic Analysis of a 10 MW Wind Turbine Rotor Using 3D CFD. / Zahle, Frederik; Bak, Christian; Sørensen, Niels N.; Guntur, Srinivas; Troldborg, Niels.

    Proceedings of 32nd ASME Wind Energy Symposium. American Society of Mechanical Engineers, 2014. AIAA 2014-0359.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2014

  9. Published

    Design of the LRP airfoil series using 2D CFD. / Zahle, Frederik; Bak, Christian; Sørensen, Niels N.; Vronsky, Tomas; Gaudern, Nicholas.

    In: Journal of Physics: Conference Series (Online), Vol. 524, No. 1, 012020, 2014.

    Publication: Research - peer-reviewConference article – Annual report year: 2014

  10. Published
  11. Published
  12. Published

    Prediction of the Effect of Vortex Generators on Airfoil Performance. / Sørensen, Niels N.; Zahle, Frederik; Bak, Christian; Vronsky, T.

    In: Journal of Physics: Conference Series (Online), Vol. 524, No. 1, 012019, 2014.

    Publication: Research - peer-reviewConference article – Annual report year: 2014

  13. Published

    Self-induced vibrations of a DU96-W-180 airfoil in stall. / Skrzypinski, Witold Robert; Gaunaa, Mac; Sørensen, Niels N.; Zahle, Frederik; Heinz, Joachim Christian.

    In: Wind Energy, Vol. 17, No. 4, 2014, p. 641-655.

    Publication: Research - peer-reviewJournal article – Annual report year: 2013

  14. E-pub ahead of print
  15. E-pub ahead of print
  16. Published

    Verification and validation of an actuator disc model. / Réthoré, Pierre-Elouan; Laan, van der, Paul Maarten; Troldborg, Niels; Zahle, Frederik; Sørensen, Niels N.

    In: Wind Energy, Vol. 17, No. 6, 2014, p. 919–937.

    Publication: Research - peer-reviewJournal article – Annual report year: 2013

  17. Published

    Vortex-induced vibrations of a DU96-W-180 airfoil at 90° angle of attack. / Skrzypinski, Witold Robert; Gaunaa, Mac; Sørensen, Niels N.; Zahle, Frederik; Heinz, Joachim Christian.

    In: Wind Energy, Vol. 17, No. 10, 2014, p. 1495-1514.

    Publication: Research - peer-reviewJournal article – Annual report year: 2014

  18. 2013
  19. Published

    A Detailed Study of the Rotational Augmentation and Dynamic Stall Phenomena for Wind Turbines. / Guntur, Srinivas; Sørensen, Niels N. (Main supervisor).

    DTU Wind Energy, 2013. 130 p. (DTU Wind Energy PhD; No. 0022(EN)).

    Publication: ResearchPh.D. thesis – Annual report year: 2014

  20. Published

    CFD applications in wind energy using RANS. / Sørensen, Niels N.; Bechmann, Andreas; Boudreault, Louis-Etienne; Koblitz, Tilman; Sogachev, Andrey.

    CFD for atmospheric flows and wind engineering. von Karman Institute for Fluid Dynamics, 2013. (Von Karman Institute for Fluid Dynamics. Lecture Series; No. 2013-02).

    Publication: Research - peer-reviewBook chapter – Annual report year: 2013

  21. Published

    CFD Modeling of Non-Neutral Atmospheric Boundary Layer Conditions. / Koblitz, Tilman; Sørensen, Niels N. (Supervisor); Bechmann, Andreas (Supervisor); Sogachev, Andrey (Supervisor).

    DTU Wind Energy, 2013. 104 p. (DTU Wind Energy PhD; No. 0019(EN)).

    Publication: ResearchPh.D. thesis – Annual report year: 2014

  22. E-pub ahead of print

    Comments on the research article by Gross et al. (2012). / Guntur, Srinivas; Sørensen, Niels N.

    In: Wind Energy, 2013.

    Publication: Research - peer-reviewComment/debate – Annual report year: 2013

  23. E-pub ahead of print
  24. Published
  25. Published

    Dynamic Stall on Rotating Airfoils: A Look at the N-Sequence Data from the NREL Phase VI Experiment. / Guntur, Srinivas; Sørensen, Niels N.; Schreck, Scott.

    In: Key Engineering Materials, Vol. 569-570, 2013, p. 611-619.

    Publication: Research - peer-reviewConference article – Annual report year: 2013

  26. Published

    Experimental and numerical investigation of 3D aerofoil characteristics on a MW wind turbine. / Troldborg, Niels; Bak, Christian; Sørensen, Niels N.; Aagaard Madsen , Helge; Réthoré, Pierre-Elouan; Zahle, Frederik; Guntur, Srinivas.

    Proceedings - European Wind Energy Conference & Exhibition 2013. European Wind Energy Association (EWEA), 2013.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2013

  27. Published

    Multigrid technique and Optimized Schwarz method on block-structured grids with discontinuous interfaces. / Kolmogorov, Dmitry; Sørensen, Niels N.; Shen, Wen Zhong; Sørensen, Jens Nørkær.

    Proceedings of 21st AIAA Computational Fluid Dynamics Conference: Numerical Algorithms for Inviscid and Viscous Flows II. American Institute of Aeronautics & Astronautics, 2013.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2013

  28. Published

    Nonlinear Eddy Viscosity Models applied to Wind Turbine Wakes. / Laan, van der, Paul Maarten; Sørensen, Niels N.; Réthoré, Pierre-Elouan; Mann, Jakob; Kelly, Mark C.; Schepers, J.G. .

    Proceedings of the 2013 International Conference on aerodynamics of Offshore Wind Energy Systems and wakes (ICOWES2013). Technical University of Denmark, 2013. p. 514-525.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2013

  29. Published

    Partitioned Fluid-Structure Interaction for Full Rotor Computations Using CFD. / Heinz, Joachim Christian; Sørensen, Niels N. (Main supervisor); Zahle, Frederik (Supervisor).

    DTU Wind Energy, 2013. 182 p. (DTU Wind Energy PhD; No. 0033(EN)).

    Publication: ResearchPh.D. thesis – Annual report year: 2013

  30. Published

    Rotor Performance Enhancement Using Slats on the Inner Part of a 10MW Rotor. / Gaunaa, Mac; Zahle, Frederik; Sørensen, Niels N.; Bak, Christian; Réthoré, Pierre-Elouan.

    Proceedings og EWEA 2013. European Wind Energy Association (EWEA), 2013.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2013

  31. Published

    Rotor Performance Enhancement Using Slats on the Inner Part of a 10MW Rotor. / Gaunaa, Mac (Author); Zahle, Frederik (Author); Sørensen, Niels N. (Author); Bak, Christian (Author); Réthoré, Pierre-Elouan (Author).

    2013. European Wind Energy Association (EWEA).European Wind Energy Conference & Exhibition 2013, Vienna, Austria, 04/02/13.

    Publication: ResearchSound/Visual production (digital) – Annual report year: 2013

  32. 2012
  33. Published

    A discrete force allocation algorithm for modelling wind turbines in computational fluid dynamics. / Réthoré, Pierre-Elouan; Sørensen, Niels N.

    In: Wind Energy, Vol. 15, No. 7, 2012, p. 915-926.

    Publication: Research - peer-reviewJournal article – Annual report year: 2011

  34. Published

    Analysis of 3D Stall Models for Wind Turbine Blades Using Data from the MEXICO Experiment. / Guntur, Srinivas; Bak, Christian; Sørensen, Niels N.

    Proceedings of the 13th International Conference on Wind Engineering. 2012.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

  35. Published

    Analysis of Mexico wind tunnel measurements : Final report of IEA Task 29, Mexnext (Phase 1). / Schepers, J.G.; Boorsma, K.; Cho, T.; Gomez-Iradi, S.; Schaffarczyk, P.; Jeromin, A.; Shen, Wen Zhong; Lutz, T.; Meister, K.; Stoevesandt, B.; Schreck, S.; Micallef, D.; Pereira, R.; Sant, T.; Aagaard Madsen , Helge; Sørensen, Niels N.

    Energy Research Centre of the Netherlands (ECN), 2012. 10 p. (ECN-E; No. 12-004).

    Publication: ResearchReport – Annual report year: 2013

  36. Published

    Atmospheric stability and complex terrain - Comparing measurements and CFD. / Koblitz, Tilman (Author); Bechmann, Andreas (Author); Berg, Jacob (Author); Sogachev, Andrey (Author); Sørensen, Niels N. (Author); Réthoré, Pierre-Elouan (Author).

    2012. The science of Making Torque from Wind 2012, Oldenburg, Germany, 09/10/12.

    Publication: ResearchSound/Visual production (digital) – Annual report year: 2012

  37. Published

    Atmospheric stability in CFD – Representation of the diurnal cycle in the atmospheric boundary layer. / Koblitz, Tilman; Bechmann, Andreas; Sogachev, Andrey; Sørensen, Niels N.

    Proceedings. European Wind Energy Association (EWEA), 2012.

    Publication: Research - peer-reviewConference abstract in proceedings – Annual report year: 2012

  38. Published

    Atmospheric stability in CFD – Representation of the diurnal cycle in the atmospheric boundary layer. / Koblitz, Tilman; Bechmann, Andreas; Sogachev, Andrey; Sørensen, Niels N.

    2012. Poster session presented at EWEA 2012 - European Wind Energy Conference & Exhibition, Copenhagen, Denmark.

    Publication: Research - peer-reviewPoster – Annual report year: 2012

  39. Published

    Comparison of four different models of vortex generators. / Fernandez, U.; Réthoré, Pierre-Elouan; Sørensen, Niels N.; Velte, Clara Marika; Zahle, Frederik; Egusquiza, E.

    Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 2012.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

  40. Published

    Comparison of openfoam and ellipsys for modelling the wind ressources in complex terrain. / Réthoré, Pierre-Elouan; Martinez, Benjamin ; Cavar, Dalibor; Zahle, Frederik; Berg, Jacob; Sørensen, Niels N.

    Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 2012.

    Publication: Research - peer-reviewConference abstract in proceedings – Annual report year: 2012

  41. Published

    Comparison of openfoam and ellipsys for modelling the wind ressources in complex terrain. / Réthoré, Pierre-Elouan; Martinez, Benjamin ; Cavar, Dalibor; Zahle, Frederik; Berg, Jacob; Sørensen, Niels N.

    2012. Poster session presented at EWEA 2012 - European Wind Energy Conference & Exhibition, Copenhagen, Denmark.

    Publication: Research - peer-reviewPoster – Annual report year: 2012

  42. Published
  43. Published

    Comparison of wind turbine wake properties in non-uniform inflow predicted by different CFD rotor models. / Troldborg, Niels (Author); Zahle, Frederik (Author); Sørensen, Niels N. (Author); Réthoré, Pierre-Elouan (Author).

    2012. The science of Making Torque from Wind 2012, Oldenburg, Germany, 09/10/12.

    Publication: ResearchSound/Visual production (digital) – Annual report year: 2012

  44. Published

    Computation of the National Renewable Energy Laboratory Phase-VI rotor in pitch motion during standstill. / Sørensen, Niels N.; Schreck, S.

    In: Wind Energy, Vol. 15, No. 3, 2012, p. 425-442.

    Publication: Research - peer-reviewJournal article – Annual report year: 2011

  45. Published

    Design and Wind Tunnel Testing of a Thick, Multi-Element High-Lift Airfoil. / Zahle, Frederik; Gaunaa, Mac; Sørensen, Niels N.; Bak, Christian.

    Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 2012.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

  46. Published

    Evaluation of several methods of determining the angle of attack on wind turbine blades. / Guntur, Srinivas (Author); Sørensen, Niels N. (Author).

    2012. The science of Making Torque from Wind 2012, Oldenburg, Germany, 09/10/12.

    Publication: ResearchSound/Visual production (digital) – Annual report year: 2012

  47. Published

    How fine is fine enough when doing CFD terrain simulations. / Sørensen, Niels N.; Bechmann, Andreas; Réthoré, Pierre-Elouan; Cavar, Dalibor; Kelly, Mark C.; Troen, Ib.

    Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 2012.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

  48. Published

    How fine is fine enough when doing CFD terrain simulations. / Sørensen, Niels N.; Bechmann, Andreas; Réthoré, Pierre-Elouan; Cavar, Dalibor; Kelly, Mark C.; Troen, Ib.

    2012. Poster session presented at EWEA 2012 - European Wind Energy Conference & Exhibition, Copenhagen, Denmark.

    Publication: Research - peer-reviewPoster – Annual report year: 2012

  49. Published

    Modelling of unsteady airfoil aerodynamics for the prediction of blade standstill vibrations. / Skrzypinski, Witold Robert; Gaunaa, Mac; Sørensen, Niels N.; Zahle, Frederik.

    Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 2012.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

  50. Published

    Numerical modeling of the airflow around a forest edge using LiDAR-derived forest heigths. / Boudreault, Louis-Etienne; Dellwik, Ebba; Bechmann, Andreas; Sørensen, Niels N.; Sogachev, Andrey.

    2012. Paper presented at 8th PhD Seminar on Wind Energy in Europe, Zurich, Switzerland.

    Publication: ResearchPaper – Annual report year: 2013

  51. Published

    Parametric Study of the Device Angle Dependency of a Single Vortex Generator on a Flat Plate. / Fernandez, U.; Réthoré, Pierre-Elouan; Sørensen, Niels N.; Velte, Clara Marika; Zahle, Frederik; Egusquiza, E.

    2012. Paper presented at 10th World Congress on Computational Mechanics (WCCM 2012), Sao Paulo, Brazil.

    Publication: Research - peer-reviewPaper – Annual report year: 2012

  52. Published

    Quantification of the Effects of Using Slats on the Inner Part of a 10MW Rotor. / Gaunaa, Mac; Zahle, Frederik; Sørensen, Niels N.; Bak, Christian.

    Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 2012.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

  53. Published

    Quantification of the Effects of Using Slats on the Inner Part of a 10MW Rotor. / Gaunaa, Mac; Zahle, Frederik; Sørensen, Niels N.; Bak, Christian.

    2012. Poster session presented at EWEA 2012 - European Wind Energy Conference & Exhibition, Copenhagen, Denmark.

    Publication: Research - peer-reviewPoster – Annual report year: 2012

  54. Published

    Self-similarity and helical symmetry in vortex generator flow simulations. / Fernandez, U.; Velte, Clara Marika; Réthoré, Pierre-Elouan; Sørensen, Niels N.

    Proceedings of Torque 2012, The science of making torque from wind. 2012.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

  55. Published

    Simulations of a rotor with active deformable trailing edge flaps in half-wake inflow: Comparison of EllipSys 3D with HAWC2. / Barlas, Thanasis K.; Zahle, Frederik; Sørensen, Niels N.; Gaunaa, Mac; Bergami, Leonardo.

    Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 2012.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

  56. Published

    Transient DDES computations of the NREL Phase-VI rotor in axial flow conditions. / Sørensen, Niels N. (Author); Schreck, Scott (Author).

    2012. The science of Making Torque from Wind 2012, Oldenburg, Germany, 09/10/12.

    Publication: ResearchSound/Visual production (digital) – Annual report year: 2012

  57. 2011
  58. Published
  59. Published

    3D CFD computations of trasitional flows using DES and a correlation based transition model. / Sørensen, Niels N.; Bechmann, Andreas; Zahle, Frederik.

    In: Wind Energy, Vol. 14, No. 1, 2011, p. 77-90.

    Publication: Research - peer-reviewJournal article – Annual report year: 2010

  60. Published

    A computational efficient algorithm for the aerodynamic response of non-straight blades. / Gaunaa, Mac; Réthoré, Pierre-Elouan Mikael; Sørensen, Niels N.; Døssing, Mads.

    Proceedings. European Wind Energy Association (EWEA), 2011.

    Publication: ResearchArticle in proceedings – Annual report year: 2011

  61. Published
  62. Published

    Aerodynamic damping of lateral tower vibrations. / Kallesøe, Bjarne Skovmose; Sørensen, Niels N.; Troldborg, Niels.

    Presentations from the Aeroelastic Workshop – latest results from AeroOpt. ed. / Morten Hartvig Hansen. Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2011. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1796(EN)).

    Publication: ResearchConference abstract in proceedings – Annual report year: 2011

  63. Published

    A Small Study of Flatback Airfoils. / Sørensen, Niels N.

    Presentations from the Aeroelastic Workshop – latest results from AeroOpt. ed. / Morten Hartvig Hansen. Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2011. p. 153-195 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1769(EN)).

    Publication: ResearchConference abstract in proceedings – Annual report year: 2011

  64. Published

    CFD simulations of the MEXICO rotor. / Bechmann, Andreas; Sørensen, Niels N.; Zahle, Frederik.

    In: Wind Energy, Vol. 14, No. 5, 2011, p. 677-689.

    Publication: Research - peer-reviewJournal article – Annual report year: 2011

  65. Published

    CFD Simulations of the Mexico Wind Tunnel and Wind Turbine. / Réthoré, Pierre-Elouan Mikael; Zahle, Frederik; Sørensen, Niels N.; Bechmann, Andreas.

    Proceedings. European Wind Energy Association (EWEA), 2011.

    Publication: ResearchArticle in proceedings – Annual report year: 2011

  66. Published

    Characterization of the unsteady flow in the nacelle region of a modern wind turbine. / Zahle, Frederik; Sørensen, Niels N.

    In: Wind Energy, Vol. 14, No. 2, 2011, p. 271-283.

    Publication: Research - peer-reviewJournal article – Annual report year: 2010

  67. Published

    Comparison of the near wake of different kinds of wind turbine CFD models. / Réthoré, Pierre-Elouan Mikael; Troldborg, Niels; Zahle, Frederik; Sørensen, Niels N.

    2011. Abstract from Wake conference, Visby (SE), 8-9 Jun, .

    Publication: ResearchConference abstract for conference – Annual report year: 2011

  68. Published
  69. Published

    Design and test of a thick, flatback, high-lift multi-element airfoil. / Zahle, Frederik; Gaunaa, Mac; Bak, Christian; Sørensen, Niels N.

    Presentations from the Aeroelastic Workshop – latest results from AeroOpt. ed. / Morten Hartvig Hansen. Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2011. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1796(EN)).

    Publication: ResearchConference abstract in proceedings – Annual report year: 2011

  70. Published
  71. Published

    Hybrid RANS/LES applied to complex terrain. / Bechmann, Andreas; Sørensen, Niels N.

    In: Wind Energy, Vol. 14, No. 2, 2011, p. 225-237.

    Publication: Research - peer-reviewJournal article – Annual report year: 2010

  72. Published

    Imposing resolved turbulence in CFD simulations. / Gilling, L.; Sørensen, Niels N.

    In: Wind Energy, Vol. 14, No. 5, 2011, p. 661-676.

    Publication: Research - peer-reviewJournal article – Annual report year: 2011

  73. Published

    Investigation of the load reduction potential of two trailing edge flap controls using CFD. / Heinz, Joachim Christian; Sørensen, Niels N.; Zahle, Frederik.

    In: Wind Energy, Vol. 14, No. 3, 2011, p. 449-462.

    Publication: Research - peer-reviewJournal article – Annual report year: 2011

  74. Published

    Mexico Wind Tunnel and Wind Turbine modelled in CFD. / Réthoré, Pierre-Elouan Mikael; Sørensen, Niels N.; Zahle, Frederik; Bechmann, Andreas; Aagaard Madsen, Helge.

    Proceedings. AIAA, 2011. p. AIAA-2011-3373.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2011

  75. Published

    Status of airfoil design and plans for wind tunnel tests of new thick airfoils. / Bak, Christian; Gaunaa, Mac; Sørensen, Niels N.; Bertagnolio, Franck.

    Presentations from the Aeroelastic Workshop – latest results from AeroOpt. ed. / Morten Hartvig Hansen. Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2011. p. 197-202 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1769(EN)).

    Publication: ResearchConference abstract in proceedings – Annual report year: 2011

  76. Published
  77. Published

    Unsteady Navier-Stokes Simulations of a Rotor Operating in Wake. / Zahle, Frederik; Aagaard Madsen, Helge; Sørensen, Niels N.

    Proceedings. European Wind Energy Association (EWEA), 2011.

    Publication: ResearchArticle in proceedings – Annual report year: 2011

  78. 2010
  79. Published

    A Comparison of Two Devices for Distributed Active Load Control of Wind Turbine Blades. / Bæk, Peter; Gaunaa, Mac; Sørensen, Niels N.; Fuglsang, Peter.

    Torque 2010: The science of making torque from wind. European Wind Energy Association (EWEA), 2010. p. 611-617.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2010

  80. Published

    Anvendelse af CFD i vindenergi. / Sørensen, Niels N.

    2010. Abstract from Vinddag 2010: Offshore, Risø (DK), 17 Jun, .

    Publication: ResearchConference abstract for conference – Annual report year: 2010

  81. Published

    A stochastic model for the simulation of wind turbine blades in static stall. / Bertagnolio, Franck; Rasmussen, Flemming; Sørensen, Niels N.; Johansen, Jeppe; Aagaard Madsen, Helge.

    In: Wind Energy, Vol. 13, No. 4, 2010, p. 323-338.

    Publication: Research - peer-reviewJournal article – Annual report year: 2010

  82. Published

    Blind Comparison Simulation Cases. / Bechmann, Andreas; Berg, Jacob; Courtney, Michael; Ejsing Jørgensen, Hans; Mann, Jakob; Sørensen, Niels N.

    Presentations. Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2010. p. 153-161 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1745(EN)).

    Publication: ResearchArticle in proceedings – Annual report year: 2010

  83. Published

    CFD Applications in Wind Energy. / Sørensen, Niels N.

    2010. Paper presented at 1st Wind Turbine Computational Aerodynamics Lecture Series, United Kingdom.

    Publication: ResearchPaper – Annual report year: 2010

  84. Published

    CFD for Rotor Aerodynamics. / Sørensen, Niels N.

    2010. Paper presented at 1st Wind Turbine Computational Aerodynamics Lecture Series, United Kingdom.

    Publication: ResearchPaper – Annual report year: 2010

  85. Published

    Computation of the NREL Phase-VI Rotor In Pitch Motion During Standstill. / Sørensen, Niels N.; Schreck, Scott.

    Torque 2010: The science of making torque from wind. European Wind Energy Association (EWEA), 2010. p. 203-218.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2010

  86. Published

    Hybrid RANS/LES method for wind flow over complex terrain. / Bechmann, Andreas; Sørensen, Niels N.

    In: Wind Energy, Vol. 13, No. 1, 2010, p. 36-50.

    Publication: Research - peer-reviewJournal article – Annual report year: 2010

  87. Published

    Modeling Issues with Wind Turbine Wake and Atmospheric Turbulence. / Réthoré, Pierre-Elouan Mikael; Sørensen, Niels N.; Bechmann, Andreas.

    Torque 2010: The science of making torque from wind. European Wind Energy Association (EWEA), 2010. p. 349-357.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2010

  88. Published

    RANS CFD simulations of flow around Bolund. / Sørensen, Niels N.

    Presentations. Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2010. p. 137-152 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1745(EN)).

    Publication: ResearchConference abstract in proceedings – Annual report year: 2010

  89. Published

    Sammenfatning af EFP07 – Metoder til kortlægning af vindforhold i komplekst terræn. / Bechmann, Andreas; Berg, Jacob; Courtney, Michael; Ejsing Jørgensen, Hans; Mann, Jakob; Sørensen, Niels N.

    Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2010. 8 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1746(DA)).

    Publication: ResearchReport – Annual report year: 2010

  90. Published

    The Bolund Experiment. / Bechmann, Andreas; Berg, Jacob; Courtney, Michael; Ejsing Jørgensen, Hans; Mann, Jakob; Sørensen, Niels N.

    Presentations. Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2010. p. 33-71 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1745(EN)).

    Publication: ResearchConference abstract in proceedings – Annual report year: 2010

  91. Published

    The DAN-AERO MW ecperiments. / Aagaard Madsen, Helge; Bak, Christian; Schmidt Paulsen, Uwe; Gaunaa, Mac; Sørensen, Niels N.; Fuglsang, Peter; Romblad, Jonas; Olsen, Niels A.; Enevoldsen, Peder; Laursen, Jesper; Jensen, Leo.

    Conference proceedings. Reston, VA (US) : American Institute of Aeronautics & Astronautics, 2010. p. AIAA 2010-0645.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2010

  92. Published

    Thick Multiple Element Airfoils for use on the Inner Part of Wind Turbine Rotors. / Gaunaa, Mac; Sørensen, Niels N.; Bak, Christian.

    Torque 2010: The science of making torque from wind. European Wind Energy Association (EWEA), 2010. p. 135-152.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2010

  93. Published

    Turbulence modelling. / Sørensen, Niels N.

    2010. Paper presented at 1st Wind Turbine Computational Aerodynamics Lecture Series, United Kingdom.

    Publication: ResearchPaper – Annual report year: 2010

  94. Published

    Upwind Navier-Stokes Rotor Flow Simulations with ground proximity and shear. / Zahle, Frederik; Sørensen, Niels N.

    Torque 2010: The science of making torque from wind. European Wind Energy Association (EWEA), 2010. p. 255-263.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2010

  95. Published

    Validation of an Actuator Disc Model. / Réthoré, Pierre-Elouan Mikael; Sørensen, Niels N.; Zahle, Frederik.

    EWEC 2010 Proceedings online. European Wind Energy Association (EWEA), 2010.

    Publication: ResearchArticle in proceedings – Annual report year: 2010

  96. 2009
  97. Published

    3D CFD computations of transitional flows using DES and a correlation based transition model. / Sørensen, Niels N.

    Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2009. 19 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1692(EN)).

    Publication: ResearchReport – Annual report year: 2009

  98. Published

    Airfoil Computations using the γ - Reθ Model. / Sørensen, Niels N.

    Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2009. 18 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1693(EN)).

    Publication: ResearchReport – Annual report year: 2009

  99. Published

    Calculations of Flow around an Airfoil with a Trailing Edge Flap by Use of an Immersed Boundary Method. / Behrens, Tim; Zhu, Wei Jun; Shen, Wen Zhong; Sørensen, Jens Nørkær; Sørensen, Niels N.; Wedel-Heinen, Jens Jakob.

    EWEC 2009 Proceedings online. EWEC, 2009.

    Publication: ResearchArticle in proceedings – Annual report year: 2009

  100. Published

    CFD for Wind Farm Siting Analysis. / Sørensen, Niels N. (Author); Bechmann, Andreas (Author); Johansen, Jeppe (Author).

    2009. Seminar on CFD and wind power, Fredericia (DK), 4 Feb., 01/01/09.

    Publication: ResearchSound/Visual production (digital) – Annual report year: 2009

  101. Published

    CFD modelling of laminar-turbulent transition for airfoils and rotors using the gamma-(Re)over-tilde (theta) model. / Sørensen, Niels N.

    In: Wind Energy, Vol. 12, No. 8, 2009, p. 715-733.

    Publication: Research - peer-reviewJournal article – Annual report year: 2009

  102. Published

    CFD simulation of the MEXICO rotor wake. / Bechmann, Andreas; Sørensen, Niels N.

    EWEC 2009 Scientific proceedings. EWEC, 2009. p. 64-68.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2009

  103. Published

    Characterisation of the unsteady flow in the nacelle region of a modern wind turbine. / Zahle, Frederik; Sørensen, Niels N.

    EWEC 2009 Proceedings online. EWEC, 2009.

    Publication: ResearchArticle in proceedings – Annual report year: 2009

  104. Published

    Characterisation of the Unsteady Flow in the Nacelle Region of a Modern Wind Turbine. / Zahle, Frederik; Sørensen, Niels N.

    Research in Aeroelasticity EFP-2007-II. ed. / Thomas Buhl. Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2009. p. 30-41 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1698(EN)).

    Publication: ResearchReport chapter – Annual report year: 2009

  105. Published

    Correlation Based Transition Modeling of Laminar to Turbulent Transition. / Sørensen, Niels N.

    Research in Aeroelasticity EFP-2007-II. ed. / Thomas Buhl. Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2009. p. 42-60 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1698(EN)).

    Publication: ResearchReport chapter – Annual report year: 2009

  106. Published

    Design of a wind turbine rotor for maximum aerodynamic efficiency. / Johansen, Jeppe; Aagaard Madsen, Helge; Gaunaa, Mac; Bak, Christian; Sørensen, Niels N.

    In: Wind Energy, Vol. 12, No. 3, 2009, p. 261-273.

    Publication: Research - peer-reviewJournal article – Annual report year: 2009

  107. Published

    Evaluation of tower shadow effects on various wind turbine concepts. / Zahle, Frederik; Aagaard Madsen, Helge; Sørensen, Niels N.

    Research in Aeroelasticity EFP-2007-II. ed. / Thomas Buhl. Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2009. p. 11-29 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1698(EN)).

    Publication: ResearchReport chapter – Annual report year: 2009

  108. Published

    Imposing Resolved Turbulence by an Actuator in a Detached Eddy Simulation of an Airfoil. / Gilling, Lasse; Sørensen, Niels N.; Rethore, Pierre-Elouan Mikael.

    EWEC 2009 Proceedings online. EWEC, 2009.

    Publication: ResearchArticle in proceedings – Annual report year: 2009

  109. Published

    Prediction of Multi Element Airfoils With the EllipSys Code. / Sørensen, Niels N.

    Research in Aeroelasticity EFP-2007-II. ed. / Thomas Buhl. Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2009. p. 95-102 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1698(EN)).

    Publication: ResearchBook chapter – Annual report year: 2009

  110. Published

    Study of the atmospheric wake turbulence of a CFD actuator disc model. / Rethore, Pierre-Elouan Mikael; Sørensen, Niels N.; Bechmann, Andreas; Zahle, Frederik.

    EWEC 2009 Proceedings online. EWEC, 2009.

    Publication: ResearchArticle in proceedings – Annual report year: 2009

  111. Published

    The Bolund experiment : Overview and background. / Bechmann, Andreas; Berg, Jacob; Christiansen, Lars C.; Courtney, Michael; Johansen, Jeppe; Ejsing Jørgensen, Hans; Mann, Jakob; Mogensen, Søren H.; Sørensen, Niels N.

    EWEC 2009 Proceedings online. EWEC, 2009.

    Publication: ResearchConference abstract in proceedings – Annual report year: 2009

  112. Published

    The Bolund Experiment: Blind Comparison of Models for Wind in Complex Terrain. / Bechmann, Andreas (Invited author); Berg, J. (Invited author); Courtney, Michael (Invited author); Jørgensen, H. (Invited author); Mann, Jakob (Invited author); Sørensen, Niels N. (Invited author).

    2009. Abstract from 2009 AGU Fall Meeting, San Fransisco, CA, United States.

    Publication: ResearchConference abstract for conference – Annual report year: 2009

  113. Published

    The Bolund Experiment: Overview and Background. / Bechmann, Andreas; Berg, Jacob; Courtney, Michael; Ejsing Jørgensen, Hans; Mann, Jakob; Sørensen, Niels N.

    Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2009. 50 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1658(EN)).

    Publication: ResearchReport – Annual report year: 2009

  114. Published

    Thick Airfoils and High Lift. / Gaunaa, Mac; Sørensen, Niels N.; Bak, Christian.

    Research in Aeroelasticity EFP-2007-II. ed. / Thomas Buhl. Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2009. p. 103-114 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1698(EN)).

    Publication: ResearchBook chapter – Annual report year: 2009

  115. Published

    Turbulence closure strategies for modelling wind turbines wake. / Rethore, Pierre-Elouan Mikael; Sørensen, Niels N.

    Extended Abstracts. ed. / Antonio Crespo; Gunner Chr. Larsen; Emilio Migoya. Universidad Politecnica de Madrid, 2009. p. 19-21.

    Publication: ResearchConference abstract in proceedings – Annual report year: 2009

  116. Published

    Wind Turbine Rotor-Tower Interaction Using an Incompressible Overset Grid Method. / Zahle, Frederik; Sørensen, Niels N.; Johansen, Jeppe.

    In: Wind Energy, Vol. 12, No. 6, 2009, p. 594-619.

    Publication: Research - peer-reviewJournal article – Annual report year: 2009

  117. 2008
  118. Published

    Actuator disc model using a modified Rhie-Chow/SIMPLE pressure correction algorithm. Comparison with analytical solutions. / Rethore, Pierre-Elouan Mikael; Sørensen, Niels N.

    Conference proceedings (online). European Wind Energy Association (EWEA), 2008.

    Publication: ResearchArticle in proceedings – Annual report year: 2008

  119. Published

    Aeroelastic stability of suspension bridges using CFD. / Stærdahl, J.W.; Sørensen, Niels N.; Nielsen, S.R.K.

    Shell and spatial structures: Structural architecture - towards the future looking to the past. Venice : University Iuav of Venice, 2008.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2008

  120. Published

    A Stochastic Static Stall Model Applied to Wing Turbine Blade. / Bertagnolio, Franck; Rasmussen, Flemming; Madsen Aagaard, Helge; Sørensen, Niels N.; Johansen, Jeppe.

    Technical papers. Vol. AIAA-2008-6723 Reston, VA (US) : American Institute of Aeronautics & Astronautics, 2008.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2008

  121. Published

    Beregning af laminar / turbulent omslag i forbindelse med vindmølleaerodynamik. / Sørensen, Niels N.

    2008. Poster session presented at Forskningens dag, Aalborg (DK), Institut for byggeri og anlæg, .

    Publication: CommunicationPoster – Annual report year: 2008

  122. Published

    CFD methods for wind turbine aerodynamics. / Sørensen, Niels N.

    Extended abstracts. ed. / T. Kvamsdal; K. Magne Mathisen; Bjørnar Pettersen. Barcelona : International Center of Numerical Methods in Engineering, 2008. p. 39-42.

    Publication: ResearchConference abstract in proceedings – Annual report year: 2008

  123. Published

    CFD modeling of laminar-turbulent transition for airfoils and rotors using the γ - Reθ model. / Sørensen, Niels N.

    Scientific proceedings. Brussels : European Wind Energy Conference and Exhibition, 2008. p. 106-112.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2008

  124. Published

    CFD Modelling of Laminar-Turbulent Transition for Airfoils and Rotors. / Sørensen, Niels N.

    Technical papers. Vol. AIAA-2008-7323 Reston, VA (US) : American Institute of Aeronautics & Astronautics, 2008.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2008

  125. Published

    Comparison of an actuator disc model with a full rotor CFD model under uniform and shear inflow condition. / Rethore, Pierre-Elouan Mikael; Sørensen, Niels N.; Zahle, Frederik; Johansen, Jeppe.

    Book of abstracts. European Academy of Wind Energy, 2008. p. 123-126.

    Publication: ResearchConference abstract in proceedings – Annual report year: 2008

  126. Published

    Current aerodynamic research activities and recent results from Risø DTU. / Rasmussen, Flemming; Madsen Aagaard, Helge; Bak, Dan Christian; Sørensen, Niels N.

    Proceedings (on CD-ROM). American Wind Energy Association (AWEA), 2008.

    Publication: ResearchArticle in proceedings – Annual report year: 2008

  127. Published

    Increased Aerodynamic Efficiency on Wind Turbine Rotors using Winglets. / Johansen, Jeppe; Gaunaa, Mac; Sørensen, Niels N.

    Technical papers. Vol. AIAA-2008-6728 Reston, VA (US) : American Institute of Aeronautics & Astronautics, 2008.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2008

  128. Published

    Laminar turbulent transition using the g−Req transition model. / Sørensen, Niels N.

    Research in aeroelasticity EFP-2007. ed. / C. Bak. Vol. Risø-R-1649(EN) Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2008. p. 49-66 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1649(EN)).

    Publication: ResearchBook chapter – Annual report year: 2008

  129. Published

    Large eddy simulations of an airfoil in turbulent inflow. / Gilling, Lasse; Sørensen, Niels N.

    Book of abstracts. European Academy of Wind Energy, 2008. p. 33-36.

    Publication: ResearchConference abstract in proceedings – Annual report year: 2008

  130. Published

    Les of airfoils in turbulent inflow. / Gilling, Lasse; Sørensen, Niels N.

    2008. Poster session presented at 4th PhD Seminar on Wind Energy in Europe, Magdeburg, Germany.

    Publication: ResearchPoster – Annual report year: 2008

  131. Published

    Modellering af laminær / turbulent transition. / Sørensen, Niels N.

    2008. Paper presented at Temamøde om aeroelasticitet - seneste resultater, Risø (DK), 14 May, .

    Publication: ResearchPaper – Annual report year: 2008

  132. Published

    Optimization of Wind Turbine Operation by Use of Spinner Anemometer. / Friis Pedersen, Troels; Sørensen, Niels N.; Vita, Luca; Enevoldsen, Peder.

    Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2008. 45 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1654(EN)).

    Publication: ResearchReport – Annual report year: 2008

  133. Published

    Overset Grid Flow Simulation on a Modern Wind Turbine. / Zahle, Frederik; Sørensen, Niels N.

    Technical papers. Vol. AIAA-2008-6727 Reston, VA (US) : American Institute of Aeronautics & Astronautics, 2008.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2008

  134. Published

    Research and education activities. / Sørensen, Niels N.

    2008. Paper presented at DANSIS symposium, Birkerød (DK), 8-9 Oct, .

    Publication: ResearchPaper – Annual report year: 2008

  135. Published

    Rotor aerodynamics in atmospheric shear flow. / Zahle, Frederik; Sørensen, Niels N.

    Scientific proceedings. Brussels : European Wind Energy Conference and Exhibition, 2008. p. 120-124.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2008

  136. Published

    The Bolund experiment - a new dataset of local wind conditions in complex terrain. / Johansen, Jeppe; Ejsing Jørgensen, Hans; Bechmann, Andreas; Courtney, Michael; Mann, Jakob; Sørensen, Niels N.; Christensen, Lars Christian.

    2008. Abstract from 2008 European Wind Energy Conference and Exhibition, Brussels, Belgium.

    Publication: ResearchConference abstract for conference – Annual report year: 2008

  137. Published

    The EllipSys2D/3D code and its application within wind turbine aerodynamics. / Sørensen, Niels N. (Author).

    2008. Workshop on future aero-elastic tools for wind turbines, Risø (DK), 16 Jun, 01/01/08.

    Publication: ResearchSound/Visual production (digital) – Annual report year: 2008

  138. Published

    The influence of wind shear and tower presence on rotor and wake aerodynamics using CFD. / Zahle, Frederik; Sørensen, Niels N.; Madsen Aagaard, Helge.

    Research in aeroelasticity EFP-2007. ed. / Dan Christian Bak. Vol. Risø-R-1649(EN) Roskilde : Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, 2008. p. 17-34 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1649(EN)).

    Publication: ResearchBook chapter – Annual report year: 2008

  139. 2007
  140. Published
  141. Published

    3D Navier-Stokes simulations of a rotor designed for maximum aerodynamic efficiency. / Johansen, Jeppe; Madsen Aagaard, Helge; Gaunaa, Mac; Bak, Dan Christian; Sørensen, Niels N.

    [Technical papers] presented at the 42. AIAA aerospace sciences meeting and exhibit. Reston, VA : American Institute of Aeronautics & Astronautics, 2007. (AIAA-2007-217).

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2007

  142. Published
  143. Published

    Aerodynamics and characteristics of a spinner anemometer. / Friis Pedersen, Troels; Sørensen, Niels N.; Enevoldsen, P.

    In: J. Phys.: Conf. Ser., Vol. 75, 2007, p. 9.

    Publication: Research - peer-reviewConference article – Annual report year: 2007

  144. Published

    Aerodynamic structures and processes in rotationally augmented flow fields. / Schreck, S.J.; Sørensen, Niels N.; Robinson, M.C.

    In: Wind Energy, Vol. 10, No. 2, 2007, p. 159-178.

    Publication: Research - peer-reviewJournal article – Annual report year: 2007

  145. Published

    Airfoils in turbulent inflow. / Sørensen, Niels N.

    2007. Paper presented at Strategisk energiforskning. Igangværende forskningsprojekter under Det Strategiske Forskningsråd (DSF), Copenhagen, Denmark.

    Publication: ResearchPaper – Annual report year: 2007

  146. Published

    Atmospheric flow over terrain using hybrid RANS/LES. / Bechmann, Andreas (Invited author); Sørensen, Niels N. (Invited author); Johansen, Jeppe (Invited author).

    Scientific proceedings. European Wind Energy Association (EWEA), 2007. p. 9-19.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2007

  147. Published

    Avanceret vindmølle aerodynamik. / Sørensen, Niels N.

    2007. Abstract from Forskningens dag 2007 ved Aalborg Universitet, Institut for Byggeri og Anlæg, Aalborg (DK), 9 Jan, .

    Publication: ResearchConference abstract for conference – Annual report year: 2007

  148. Published

    CFD modelling of wind turbine aerodynamics. / Sørensen, Niels N. (Invited author).

    Wind turbine aerodynamics: A state-of-the-art. ed. / J.-F. Brouckaert. Rhode Saint Genese : von Karman Institute for Fluid Dynamics, 2007. (Lecture Series 2007-05).

    Publication: ResearchArticle in proceedings – Annual report year: 2007

  149. Published

    Computational methods in wind power meteorology. / Jørgensen, Bo Hoffmann; Ott, Søren; Sørensen, Niels N.; Mann, Jakob; Badger, Jake.

    Risø National Laboratory, 2007. 28 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1560(EN)).

    Publication: ResearchReport – Annual report year: 2007

  150. Published

    How to use CFD for wind in terrain ... real-life experience!. / Bechmann, Andreas; Sørensen, Niels N.; Johansen, Jeppe.

    2007. Paper presented at CFD workshop, Århus (DK), .

    Publication: ResearchPaper – Annual report year: 2007

  151. Published

    Hybrid RANS/LES method for high Reynolds numbers, applied to atmospheric flow over complex terrain. / Bechmann, Andreas; Sørensen, Niels N.; Johansen, Jeppe; Vinther, S.; Nielsen, B.S.; Botha, P.

    In: J. Phys.: Conf. Ser., Vol. 75, 2007, p. 14.

    Publication: Research - peer-reviewConference article – Annual report year: 2007

  152. Published

    Hybrid RANS/LES of neutral atmospheric boundary layer: Simple terrain. / Bechmann, Andreas; Mann, Jakob; Johansen, Jeppe; Sørensen, Niels N.

    Progress in turbulence 2: Proceedings. ed. / M. Oberlack; G. Khujadze; S. Günther; T. Weller; M. Frewer; J. Peinke; S. Barth. Berlin : Springer, 2007. p. 155-158 (Springer Proceedings in Physics, 109).

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2007

  153. Published

    Identification of severe wind conditions using a Reynolds averaged Navier-Stokes solver. / Sørensen, Niels N.; Bechmann, Andreas; Johansen, Jeppe; Myllerup, Lisbeth; Botha, P.; Vinther, S.; Nielsen, B.S.

    In: J. Phys.: Conf. Ser., Vol. 75, 2007, p. 13.

    Publication: Research - peer-reviewConference article – Annual report year: 2007

  154. Published

    Influence of wind shear on rotor aerodynamics, power and loads. / Madsen Aagaard, Helge; Mikkelsen, R.; Sørensen, Niels N.; Hansen, M.O.L.; Øye, S.; Johansen, Jeppe.

    Research in aeroelasticity EFP-2006. ed. / C. Bak. Risø National Laboratory, 2007. p. 101-116 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1611(EN)).

    Publication: ResearchBook chapter – Annual report year: 2007

  155. Published

    Numerical analysis of winglets on wind turbine blades using CFD. / Johansen, Jeppe (Invited author); Sørensen, Niels N. (Invited author).

    Conference proceedings (online). Brussels : European Wind Energy Association (EWEA), 2007.

    Publication: ResearchArticle in proceedings – Annual report year: 2007

  156. Published

    On the influence of far-wake resolution on wind turbine flow simulations. / Zahle, Frederik; Sørensen, Niels N.

    In: J. Phys.: Conf. Ser., Vol. 75, 2007, p. 9.

    Publication: Research - peer-reviewConference article – Annual report year: 2007

  157. Published

    Simulation of low frequency noise from a downwind wind turbine rotor. / Madsen Aagaard, Helge; Johansen, Jeppe; Sørensen, Niels N.; Larsen, Gunner Chr.; Hansen, Morten Hartvig.

    [Technical papers] presented at the 42. AIAA aerospace sciences meeting and exhibit. Reston, VA : American Institute of Aeronautics & Astronautics, 2007. (AIAA-2007-623).

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2007

  158. Published

    Spinner anemometry - an innovative wind speed measurement concept. / Friis Pedersen, Troels (Invited author); Sørensen, Niels N. (Invited author); Madsen Aagaard, Helge (Invited author); Møller, Rene (Invited author); Courtney, Michael S (Invited author); Enevoldsen, P. (Invited author); Egedal, P. (Invited author).

    Conference proceedings (online). Brussels : European Wind Energy Association (EWEA), 2007.

    Publication: ResearchArticle in proceedings – Annual report year: 2007

  159. Published

    The Bolund experiment - design of measurement campaign using CFD. / Bechmann, Andreas; Johansen, Jeppe; Sørensen, Niels N.

    Risø National Laboratory, 2007. 20 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1623(EN)).

    Publication: ResearchReport – Annual report year: 2007

  160. Published

    The Bolund experiment. Design of measurement campaign using CFD. / Johansen, Jeppe; Bechmann, Andreas; Sørensen, Niels N.; Ejsing Jørgensen, Hans; Courtney, Michael S.

    2007. Paper presented at CFD workshop, Århus (DK), .

    Publication: ResearchPaper – Annual report year: 2007

  161. Published

    UpWind, aerodynamics and aero-elasticity, rotor aerodynamics in atmospheric shear flow. / Sørensen, Niels N. (Invited author); Johansen, Jeppe (Invited author).

    Conference proceedings (online). Brussels : European Wind Energy Association (EWEA), 2007.

    Publication: ResearchArticle in proceedings – Annual report year: 2007

  162. Published

    What is CFD? - CFD for flow over complex terrain. / Sørensen, Niels N.

    2007. Abstract from CFD workshop, Århus (DK), .

    Publication: ResearchConference abstract for conference – Annual report year: 2007

  163. Published

    Wind in complex terrain using CFD. / Bechmann, Andreas; Sørensen, Niels N.; Johansen, Jeppe.

    2007. Paper presented at Internal DTU conference on future energy research at the Technical University of Denmark, Roskilde, Denmark.

    Publication: ResearchPaper – Annual report year: 2007

  164. Published

    Wind turbine aerodynamics using an incompressible overset grid method. / Zahle, Frederik (Invited author); Johansen, Jeppe (Invited author); Sørensen, Niels N. (Invited author).

    Scientific proceedings. Brussels : European Wind Energy Association (EWEA), 2007. p. 9-19.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2007

  165. Published

    Wind turbine aerodynamics using CFD. / Johansen, Jeppe; Zahle, Frederik; Bertagnolio, Franck; Sørensen, Niels N.

    2007. Poster session presented at Internal DTU conference on future energy research at the Technical University of Denmark, Roskilde, Denmark.

    Publication: ResearchPoster – Annual report year: 2007

  166. Published

    Wind turbine rotor-tower interaction using an incompressible overset grid method. / Zahle, Frederik; Johansen, Jeppe; Sørensen, Niels N.; Graham, J.M.R.

    [Technical papers] presented at the 42. AIAA aerospace sciences meeting and exhibit. Reston, VA : American Institute of Aeronautics & Astronautics, 2007. (AIAA-2007-0425).

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2007

  167. 2006
  168. Published

    Advanced rotor aerodynamics - including tip and root aerodynamics. / Johansen, Jeppe; Sørensen, Niels N.; Aagaard Madsen, Helge; Shen, Wen Zhong; Okulov, V.

    Research in aeroelasticity EFP-2005. ed. / C. Bak. Vol. Risø-R-1559(EN) 2006. p. 11-17.

    Publication: ResearchBook chapter – Annual report year: 2006

  169. Published

    Aerodynamic investigation of winglets on wind turbine blades using CFD. / Johansen, Jeppe; Sørensen, Niels N.

    2006. 18 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1543(EN)).

    Publication: ResearchReport – Annual report year: 2006

  170. Published

    Aerodynamic investigation of winglets on wind turbine blades using CFD. / Johansen, Jeppe; Sørensen, Niels N.

    2006. Abstract from IEA Annex XI/XX joint meeting, Kiel, Germany.

    Publication: ResearchConference abstract for conference – Annual report year: 2006

  171. Published

    An investigation of inboard rotor/blade aerodynamics and its influence on blade design. / Aagaard Madsen, H.; Johansen, J.; Bak, C.; Sørensen, Niels N.

    2006. Abstract from Sandia blade workshop, Alberquerque (US), 18-19 Apr, .

    Publication: ResearchConference abstract for conference – Annual report year: 2006

  172. Published

    Enhancing the damping of wind turbine rotor blades, the DAMPBLADE project. / Chaviaropoulos, P.K.; Politis, E.S.; Lekou, D.J.; Sørensen, Niels N.; Hansen, M.H.; Bulder, B.H.; Windelaar, D.; Lindenburg, C.; Saravanos, D.A.; Philippidis, T.P.; Galiotis, C.; Hansen, M.O.L.; Kossivas, T.

    In: Wind Energy, Vol. 9, No. 1-2, 2006, p. 163-177.

    Publication: Research - peer-reviewConference article – Annual report year: 2006

  173. Published

    Inboard rotor/blade aerodynamics and its influence on blade design. / Aagaard Madsen, H.; Mikkelsen, R.; Johansen, J.; Bak, C.; Øye, S.; Sørensen, Niels N.

    Research in aeroelasticity EFP-2005. ed. / C. Bak. Vol. Risø-R-1559(EN) 2006. p. 19-39.

    Publication: ResearchBook chapter – Annual report year: 2006

  174. Published

    Large-eddy simulation of neutral atmospheric boundary layer. / Hansen, A.; Mann, J.; Johansen, J.; Sørensen, Niels N.

    In: Geophys. Res. Abstr. (CD-ROM), Vol. 8, No. Abstr. EGU06-A-02672, 2006.

    Publication: ResearchJournal article – Annual report year: 2006

  175. Published

    Modelling of transient wind turbine loads during pitch motion (paper and poster). / Sørensen, Niels N.; Aagaard Madsen, H.

    Proceedings (online). Brussels : European Wind Energy Association (EWEA), 2006.

    Publication: ResearchArticle in proceedings – Annual report year: 2006

  176. Published

    Numerical investigation of a wind turbine rotor with an aerodynamically redesigned hub-region. / Johansen, J.; Aagaard Madsen, H.; Sørensen, Niels N.; Bak, C.

    Proceedings (online). Brussels : European Wind Energy Association (EWEA), 2006.

    Publication: ResearchArticle in proceedings – Annual report year: 2006

  177. Published

    Profile catalogue for airfoil sections based on 3D computations. / Bertagnolio, F.; Sørensen, Niels N.; Johansen, J.

    Research in aeroelasticity EFP-2005. ed. / C. Bak. Vol. Risø-R-1559(EN) 2006. p. 55-68.

    Publication: ResearchBook chapter – Annual report year: 2006

  178. Published

    Profile catalogue for airfoil sections based on 3D computations. / Bertagnolio, F.; Sørensen, Niels N.; Johansen, Jeppe.

    2006. 72 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1581(EN)).

    Publication: ResearchReport – Annual report year: 2006

  179. Published

    Rotor tower interaction using an incompressible overset grid method. / Zahle, F.; Sørensen, Niels N.; Johansen, J.; Graham, J.M.R.

    2006. Abstract from IEA Annex XI/XX joint meeting, Kiel, Germany.

    Publication: ResearchConference abstract for conference – Annual report year: 2006

  180. Published

    State of the art in wind turbine aerodynamics and aeroelasticity. / Hansen, Martin Otto Laver; Sørensen, Jens Nørkær; Voutsinas, S; Sørensen, Niels N.; Aagaard Madsen, Helge.

    In: Progress in Aerospace Sciences, Vol. 42, 2006, p. 285-330.

    Publication: Research - peer-reviewJournal article – Annual report year: 2006

  181. 2005
  182. Published

    CFD activities at Risø Wind Energy Department. / Sørensen, Niels N.

    2005. Abstract from Marine - CFD workshop, Trondheim (NO), 16 Jun, .

    Publication: ResearchConference abstract for conference – Annual report year: 2005

  183. Published

    CFD computations of wind turbine aerodynamics. / Sørensen, Niels N.

    2005. Abstract from Damping mechanisms in dynamics of structures and materials. Project meeting no. 9, Fredericia (DK), 11-12 Feb, .

    Publication: ResearchConference abstract for conference – Annual report year: 2005

  184. Published

    CFD in wind energy. / Sørensen, Niels N.

    2005. Abstract from Guest lecture, Aalborg University, Centre for Computational Mechanics, Aalborg (DK), 27 Apr, .

    Publication: ResearchConference abstract for conference – Annual report year: 2005

  185. Published

    Computational wind power meteorology in complex terrain compared to measurements (poster). / Jørgensen, B.H.; Hansen, A.D.; Myllerup, L.; Sørensen, Niels N.; Mann, J.; Ott, Søren; Badger, J.

    Proceedings CD-ROM. Brussels : European Wind Energy Association (EWEA), 2005.

    Publication: ResearchArticle in proceedings – Annual report year: 2005

  186. Published

    Detached-Eddy simulation of decaying homogeneous isotropic turbulence. / Hansen, A.; Sørensen, Niels N.; Johansen, J.; Michelsen, J.A.

    [Technical papers] presented at the 42. AIAA aerospace sciences meeting and exhibit. Reston, VA : American Institute of Aeronautics & Astronautics, 2005. (AIAA-2005-885).

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2005

  187. Published

    Hybrid RANS/LES of neutral atmospheric boundary layer: Simple terrain. / Hansen, A.; Mann, J.; Johansen, J.; Sørensen, Niels N.

    2005. Abstract from iTi Conference in Turbulence, Bad Zwischenahn, Germany.

    Publication: ResearchConference abstract for conference – Annual report year: 2005

  188. Published

    KNOW-BLADE task-3.2 report: Tip shape study. / Sørensen, Niels N.; Johansen, Jeppe; Conway, S.; Voutsinas, S.; Hansen, M.O.L.; Stuermer, A.

    2005. 49 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1495(EN)).

    Publication: ResearchReport – Annual report year: 2005

  189. Published

    KNOW-BLADE task-3.3 report: Rotor blade computations with 3D vortex generators. / Johansen, J.; Sørensen, Niels N.; Reck, M.; Hansen, M.O.L.; Stuermer, A.; Ramboer, J.; Hirsch, C.; Ekaterinaris, J.; Voutsinas, S.; Perivolaris, Y.

    2005. 65 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1486(EN)).

    Publication: ResearchReport – Annual report year: 2005

  190. Published

    New insight into the flow around a wind turbine airfoil section. / Bertagnolio, F.; Sørensen, Niels N.; Rasmussen, F.

    In: Journal of Solar Energy Engineering, Vol. 127, 2005, p. 214-222.

    Publication: Research - peer-reviewJournal article – Annual report year: 2005

  191. Published

    Rotor computations using a 'Steady State' moving mesh. / Sørensen, Niels N.

    2005. Abstract from IEA Joint Action Committee on Aerodynamics, Pamplona, Spain.

    Publication: ResearchConference abstract for conference – Annual report year: 2005

  192. 2004
  193. Published

    Drag prediction for blades at high angle of attack using CFD. / Sørensen, Niels N.; Michelsen, J.A.

    In: Journal of Solar Energy Engineering, Vol. 126, No. 4, 11.2004, p. 1011-1016.

    Publication: Research - peer-reviewJournal article – Annual report year: 2004

  194. Published

    A computational comparison of standard and pneumatic Gurney flaps using CFD. / Trevelyan, C.; Zahle, F.; Michelsen, J.A.; Sørensen, Niels N.; Infield, D.G.

    Scientific proceedings. London : European Wind Energy Association (EWEA), 2004. p. 112-116.

    Publication: ResearchArticle in proceedings – Annual report year: 2004

  195. Published

    Airfoil characteristics from 3-D CFD rotor computations. / Johansen, J.; Sørensen, Niels N.

    Proceedings. Delft : Delft University of Technology, 2004. p. 9-15.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2004

  196. Published

    Airfoil characteristics from 3D CFD rotor computations. / Johansen, Jeppe; Sørensen, Niels N.

    In: Wind Energy, Vol. 7, 2004, p. 283-294.

    Publication: Research - peer-reviewJournal article – Annual report year: 2004

  197. Published

    CFD computations of wind turbine blade loads during standstill operation KNOW-BLADE, Task 3.1 report. / Sørensen, Niels N.; Johansen, Jeppe; Conway, S.

    2004. 28 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1465(EN)).

    Publication: ResearchReport – Annual report year: 2004

  198. Published

    Computational study of the Risø B1-24 wind turbine profile fitted with Gurney flaps. / Zahle, F.; Sørensen, Niels N.; Graham, J.M.R.

    Proceedings. Delft : Delft University of Technology, 2004. p. 25-36.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2004

  199. Published

    Computational wind power meteorology in complex terrain compared to measurements (poster). / Jørgensen, B.H.; Hansen, A.D.; Myllerup, L.; Sørensen, Niels N.; Mann, J.; Ott, Søren; Badger, J.

    2004. Poster session presented at 2004 European Wind Energy Conference and Exhibition, London, United Kingdom.

    Publication: ResearchPoster – Annual report year: 2004

  200. Published

    Drag prediction for blades at high angle of attack using CFD. / Sørensen, Niels N.; Michelsen, J.A.

    A collection of the 2004 ASME wind energy symposium technical papers presented at the 42. AIAA aerospace sciences meeting and exhibit. Reston, VA : American Institute of Aeronautics and Astronautics; American Society of Mechanical Engineers, 2004. p. 386-393.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2004

  201. Published

    Enhancing the Damping of Wind Turbine Rotor Blades, the DAMPBLADE Project. / Chaviaropoulos, P.; Politis, E.S.;Lekou; Sørensen, Niels N.; Hansen, M.H.; Bulder, B.H.; Winkelaar, D.; Lindenburg, C.; Saravanos, D.A.; Philippidis, T.P.; Galiotis, C.; Hansen, M.O.L.; Kossivas, T.

    Procedings of 2004 European Wind Energy Conference and Exihibition. London : European Wind Energy Association (EWEA), 2004. p. 91-94.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2004

  202. Published

    KNOW-BLADE Task-2 report: Aerodynamic accessories. / Johansen, J.; Sørensen, Niels N.; Zahle, Frederik; Kang, S.; Nikolaou, I.; Politis, E.S.; Chaviaropoulos, P.K.; Ekaterinaris, J.

    2004. 33 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1482(EN)).

    Publication: ResearchReport – Annual report year: 2004

  203. Published

    KNOW-BLADE task-4 report: Navier-Stokes aeroelasticity. / Politis, E.S.; Nikolaou, I.G.; Chaviaropoulos, P.K.; Bertagnolio, F.; Sørensen, Niels N.; Johansen, Jeppe.

    2004. 39 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1492(EN)).

    Publication: ResearchReport – Annual report year: 2004

  204. Published

    New insight in the flow around a wind turbine airfoil section. / Bertagnolio, F.; Sørensen, Niels N.; Rasmussen, F.

    Proceedings. Delft : Delft University of Technology, 2004. p. 59-70.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2004

  205. Published

    Rotoraerodynamik. / Johansen, J.; Sørensen, Niels N.; Mikkelsen, R.

    Forskning i aeroelasticitet EFP-2002. ed. / C. Bak. Vol. Risø-R-1434(DA) 2004. p. 11-34.

    Publication: ResearchBook chapter – Annual report year: 2004

  206. Published

    The next generation numerical wind tunnel (poster). / Sørensen, Niels N.; Johansen, J.; Bertagnolio, F.

    2004. Poster session presented at DCSC seminar, Odense, Denmark.

    Publication: ResearchPoster – Annual report year: 2004

  207. 2003
  208. Published

    Aerodynamic structures and processes in rotationally augmented flow fields. / Schreck, S.J.; Sørensen, Niels N.; Robinson, M.C.

    Proceedings CD.ROM. CD 2. Brussels : European Wind Energy Association (EWEA), 2003.

    Publication: ResearchArticle in proceedings – Annual report year: 2003

  209. Published

    Aeroelastic simulation of a wind turbine airfoil by coupling CFD and a beam element model. / Bertagnolio, F.; Sørensen, Niels N.; Madsen, M.H.; Gaunaa, M.

    Proceedings CD-ROM. CD 2. Brussels : European Wind Energy Association (EWEA), 2003.

    Publication: ResearchConference abstract in proceedings – Annual report year: 2003

  210. Published

    An improved SIMPLEC method on collocated grids for steady and unsteady flow computations. / Shen, W.Z.; Michelsen, J.A.; Sørensen, Niels N.; Sørensen, J.N.

    In: Num. Heat Transfer B, Vol. 43, 2003, p. 221-239.

    Publication: Research - peer-reviewJournal article – Annual report year: 2003

  211. Published

    Computational methods in wind power meteorology (poster). / Sørensen, Niels N.; Mann, J.; Jørgensen, B.H.

    2003. Poster session presented at DCSC seminar, Copenhagen, Denmark.

    Publication: ResearchPoster – Annual report year: 2003

  212. Published

    Computation of modal aerodynamic damping using CFD. / Bertagnolio, F.; Gaunaa, M.; Sørensen, Niels N.; Hansen, M.H.; Rasmussen, F.

    AIAA Paper 2003-521. Reston, VA : American Institute of Aeronautics & Astronautics, 2003.

    Publication: ResearchArticle in proceedings – Annual report year: 2003

  213. Published

    Detached-Eddy simulation of flow around the NREL Phase-VI rotor (poster). / Johansen, J.; Sørensen, Niels N.; Michelsen, J.A.; Schreck, S.

    Proceedings CD-ROM. CD 2. Brussels : European Wind Energy Association (EWEA), 2003.

    Publication: ResearchArticle in proceedings – Annual report year: 2003

  214. Published

    Knowblade - Modelling aspects. / Sørensen, Niels N.

    2003. Abstract from 2003 European Wind Energy Conference and Exhibition, Madrid, Spain.

    Publication: ResearchConference abstract for conference – Annual report year: 2003

  215. Published

    Knowblade task 1 ''Improving power curve predictions'' - first results. / Hansen, M.O.L.; Michelsen, J.A.; Sørensen, Niels N.; Johansen, J.; Voutsinas, S.; Papakonstantinou, V.; Conway, S.; Kang, S.; Ekatarinaris, J.

    Proceedings CD.ROM. CD 2. Brussels : European Wind Energy Association (EWEA), 2003.

    Publication: ResearchArticle in proceedings – Annual report year: 2003

  216. Published

    Knowblade - Wind turbine blade aerodynamics and aeroelasticity: Closing knowledge gaps. / Sørensen, Niels N.

    2003. Abstract from 2003 European Wind Energy Conference and Exhibition, Madrid, Spain.

    Publication: ResearchConference abstract for conference – Annual report year: 2003

  217. Published

    Mean wake deficit in the near field. / Larsen, Gunner Chr.; Aagaard Madsen, H.; Sørensen, Niels N.

    Proceedings CD-ROM. CD 2. Brussels : European Wind Energy Association (EWEA), 2003.

    Publication: ResearchArticle in proceedings – Annual report year: 2003

  218. Published

    Method for extracting airfoil data using 3D CFD computations. / Johansen, J.; Sørensen, Niels N.

    2003. Abstract from IEA Annex XI Joint Action Meeting #16 on "Aerodynamics of Wind Turbines", Boulder, CO, United States.

    Publication: ResearchConference abstract for conference – Annual report year: 2003

  219. Published

    Risø's CFD contribution to Annex XX. / Johansen, J.; Sørensen, Niels N.

    2003. Abstract from IEA Annex XX aerodynamics and models from wind tunnel measurements meeting, Boulder, CO (US), 7-8 May, .

    Publication: ResearchConference abstract for conference – Annual report year: 2003

  220. Published

    The next generation numerical wind tunnel (poster). / Sørensen, Niels N.; Johansen, J.; Bertagnolio, Franck.

    2003. Poster session presented at DCSC seminar, Copenhagen, Denmark.

    Publication: ResearchPoster – Annual report year: 2003

  221. Published

    Viscous and aeroelastic effects on wind turbine blades. The VISCEL project. Part 1: 3D Navier-Stokes rotor simulations. / Charviaropoulos, P.K.; Sørensen, Niels N.; Hansen, M.O.L.; Nikolaou, I.G.; Aggelis, K.A.; Johansen, J.; Gaunaa, Mac; Hambraus, T.; Geyer, H.F. von; Hirsch, C.; Shun, Kang; Voutsinas, S.G.; Tzambiras, G.; Perivolaris, Y.; Dyrmose, S.Z.

    In: Wind Energy, Vol. 6, 2003, p. 365-385.

    Publication: Research - peer-reviewJournal article – Annual report year: 2003

  222. Published

    Viscous and aeroelastic effects on wind turbine blades. The VISCEL project. Part 2: Aeroelastic stability investigations. / Charviaropoulos, P.K.; Sørensen, Niels N.; Hansen, M.O.L.; Nikolaou, I.G.; Aggelis, K.A.; Johansen, J.; Gaunaa, Mac; Hambraus, T.; Geyer, H.F. von; Hirsch, C.; Shun, Kang; Voutsinas, S.G.; Tzambiras, G.; Perivolaris, Y.; Dyrmose, S.Z.

    In: Wind Energy, Vol. 6, 2003, p. 387-403.

    Publication: Research - peer-reviewJournal article – Annual report year: 2003

  223. Published

    Yaw aerodynamics analyzed with three codes in comparison with experiment. / Aagaard Madsen, H.; Sørensen, Niels N.; Schreck, S.

    AIAA Paper 2003-519. Reston, VA : American Institute of Aeronautics & Astronautics, 2003.

    Publication: ResearchArticle in proceedings – Annual report year: 2003

  224. 2002
  225. Published

    Detached-eddy simulation of flow around the NREL phase VI blade. / Johansen, Jeppe; Sørensen, Niels N.; Michelsen, J.A.; Schreck, S.

    In: Wind Energy, Vol. 5, No. 2-3, 22.07.2002, p. 185-197.

    Publication: Research - peer-reviewJournal article – Annual report year: 2002

  226. Published

    3D background aerodynamics using CFD. / Sørensen, Niels N.

    2002. 16 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1376(EN)).

    Publication: ResearchReport – Annual report year: 2002

  227. Published

    Application of CFD to wind turbine aerodynamics (presented by J. Johansen). / Sørensen, Niels N.; Michelsen, J.A.; Schreck, S.

    CD-Rom proceedings. ed. / D.T. Tsahalis. [s.l.] : Greek Association of Computational Mechanics, 2002.

    Publication: ResearchArticle in proceedings – Annual report year: 2002

  228. Published

    CFD study of a NACA 63-415 aerofoil fitted with stall strips. / Zahle, F.; Sørensen, Niels N.; Johansen, Jeppe.

    2002. 51 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1370(EN)).

    Publication: ResearchReport – Annual report year: 2002

  229. Published

    Computation of aerodynamic damping for wind turbine applications. / Bertagnolio, F.; Gaunaa, Mac; Hansen, M.; Sørensen, Niels N.; Rasmussen, Flemming.

    CD-Rom proceedings. ed. / D.T. Tsahalis. [s.l.] : Greek Association of Computational Mechanics, 2002.

    Publication: ResearchArticle in proceedings – Annual report year: 2002

  230. Published

    Conclusions from the comparisons of numerous 2D airfoil computations with experiments. / Bertagnolio, F.; Sørensen, Niels N.; Johansen, J.; Fuglsang, P.

    Collection of technical papers. Reston, VA : American Institute of Aeronautics & Astronautics, 2002.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2002

  231. Published

    Detached-eddy simulation of flow around the NREL phase-VI blade. / Johansen, J.; Sørensen, Niels N.; Michelsen, J.A.; Schreck, S.

    2002 ASME wind energy symposium; 40th AIAA aerospace sciences meeting and exhibit. Reston, VA : American Institute of Aeronautics & Astronautics, 2002.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2002

  232. Published

    Navier-Stokes predictions of the NREL phase VI rotor in the NASA Ames 80-by-120 wind tunnel. / Sørensen, Niels N.; Michelsen, J.A.; Schreck, S.

    2002 ASME wind energy symposium; 40. AIAA aerospace sciences meeting and exhibit. Reston, VA : American Institute of Aeronautics & Astronautics, 2002.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2002

  233. Published

    Navier-Stokes predictions of the NREL phase VI rotor in the NASA Ames 80 ft × 120 ft wind tunnel. / Sørensen, Niels N.; Michelsen, J.A.; Schreck, S.

    In: Wind Energy, Vol. 5, 2002, p. 151-169.

    Publication: Research - peer-reviewJournal article – Annual report year: 2002

  234. Published

    Navier-Stokes simulation of three tip shapes for wind turbine blades. / Johansen, J.; Sørensen, Niels N.; Michelsen, J.A.

    CD-Rom proceedings. ed. / D.T. Tsahalis. [s.l.] : Greek Association of Computational Mechanics, 2002.

    Publication: ResearchArticle in proceedings – Annual report year: 2002

  235. Published

    Numerical investigation of three wind turbine blade tips. / Johansen, J.; Sørensen, Niels N.

    2002. 27 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1353(EN)).

    Publication: ResearchReport – Annual report year: 2002

  236. Published

    Scientific computing inden for vindmølleaerodynamik. / Sørensen, Niels N.

    2002. Abstract from Indvielse af nyt center for Scientific Computing i Århus CSC-AA, Århus (DK), 5 Sep, .

    Publication: ResearchConference abstract for conference – Annual report year: 2002

  237. Published

    Transition prediction on the NORDTANK 500/41 turbine rotor. / Sørensen, Niels N.

    2002. 17 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1365(EN)).

    Publication: ResearchReport – Annual report year: 2002

  238. Published

    Udgivelse af profilkatalog. / Bertagnolio, F.; Johansen, J.; Sørensen, Niels N.

    Forskning i aeroelasticitet EFP-2001. ed. / H. Aagaard Madsen. Vol. Risø-R-1349(DA) 2002. p. 27-30.

    Publication: ResearchBook chapter – Annual report year: 2002

  239. Published

    Undersøgelse af bladtipaerodynamik og -design på grundlag af 3D CFD beregninger. / Johansen, J.; Sørensen, Niels N.

    Forskning i aeroelasticitet EFP-2001. ed. / H. Aagaard Madsen. Vol. Risø-R-1349(DA) 2002. p. 11-17.

    Publication: ResearchBook chapter – Annual report year: 2002

  240. Published

    Undersøgelse af tiptabskorrektion. / Bak, C.; Shen, Wen Zhong; Sørensen, J.N.; Mikkelsen, R.; Sørensen, Niels N.

    Forskning i aeroelasticitet EFP-2001. ed. / H. Aagaard Madsen. Vol. Risø-R-1349(DA) 2002. p. 19-26.

    Publication: ResearchBook chapter – Annual report year: 2002

  241. Published

    Use of computational fluid dynamics on wind turbine aerodynamics (invited lecture). / Johansen, J.; Sørensen, Niels N.; Michelsen, J.A.

    2002. Abstract from Workshop on dynamic simulation, theory and real-life applications, Datalogisk Institut, København (DK), 5. Nov, .

    Publication: ResearchConference abstract for conference – Annual report year: 2002

  242. Published

    Vingedesign med CFD. / Sørensen, Niels N.

    2002. Abstract from Energistyrelsens teknisk/faglige vindenergikonference 2002, Fredericia , Denmark.

    Publication: ResearchConference abstract for conference – Annual report year: 2002

  243. 2001
  244. Published

    CFD modellering af vindmøllerotorer. / Johansen, J.; Sørensen, Niels N.; Bertagnolio, F.; Michelsen, J.A.

    2001. Abstract from Risø vinddag 2001, Risø (DK), 28 Nov, .

    Publication: ResearchConference abstract for conference – Annual report year: 2001

  245. Published

    CFD vortex generator model (poster). / Johansen, J.; Sørensen, Niels N.; Hansen, M.O.L.

    Wind energy for the new millennium. Proceedings. ed. / P. Helm; A. Zervos. München : WIP Renewable Energies, 2001. p. 418-421.

    Publication: ResearchArticle in proceedings – Annual report year: 2001

  246. Published

    Damped wind turbine rotor blades for enhanced aeroelastic stability and fatigue life using passively damped composites (poster). / Chaviaropoulos, P.; Sørensen, Niels N.; Thomsen, K.; Bulder, B.H.; Winkelaar, D.; Galiotis, C.; Saravanos, D.; Philippidis, T.; Hansen, M.O.; Boer, J. de; Kossivas, T.

    Wind energy for the new millennium. Proceedings. ed. / P. Helm; A. Zervos. München : WIP Renewable Energies, 2001. p. 462-465.

    Publication: ResearchArticle in proceedings – Annual report year: 2001

  247. Published

    Detached-Eddy simulation of flow around the S809 airfoil (poster). / Johansen, J.; Sørensen, Niels N.; Michelsen, J.A.; Schreck, S.

    Wind energy for the new millennium. Proceedings. ed. / P. Helm; A. Zervos. München : WIP Renewable Energies, 2001. p. 414-417.

    Publication: ResearchArticle in proceedings – Annual report year: 2001

  248. Published

    Detailed aerodynamic prediction of the NREL/NASA Ames wind tunnel tests using CFD. / Sørensen, Niels N.; Michelsen, J.A.; Schreck, S.

    Proceedings of the 2001 European Wind Energy Conference and Exhibition: Wind energy for the new millennium. ed. / P. Helm; A. Zervos. München : WIP Renewable Energies, 2001. p. 48-53.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2001

  249. Published

    Detaljeret 3D CFD beregning med programmet EllipSys3D på National Renewable Energy Laboratory's (NREL) 10 m rotor. / Sørensen, Niels N.; Michelsen, J.A.

    Forskning i aeroelasticitet EFP-2000. ed. / H. Aagaard Madsen. Vol. Risø-R-1272(DA) 2001. p. 15-26.

    Publication: ResearchBook chapter – Annual report year: 2001

  250. Published

    Forbedret beregningsmodel for vinger i stall. / Johansen, J.; Sørensen, Niels N.

    Forskning i aeroelasticitet EFP-2000. ed. / H. Aagaard Madsen. Vol. Risø-R-1272(DA) 2001. p. 27-34.

    Publication: ResearchBook chapter – Annual report year: 2001

  251. Published

    Numerical wind tunnel. / Sørensen, Niels N.

    Wind Energy Department: Scientific and technical progress 1999-2000. ed. / B. Skrumsager; G.C. Larsen. Vol. Risø-R-1239(EN) 2001.

    Publication: ResearchBook chapter – Annual report year: 2001

  252. Published

    Status for the two-dimensional Navier-Stokes solver EllipSys2D. / Bertagnolio, F.; Sørensen, Niels N.; Johansen, J.

    2001. 39 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1282(EN)).

    Publication: ResearchReport – Annual report year: 2001

  253. Published

    Status på 2D CFD profilberegninger. / Bertagnolio, F.; Johansen, J.; Sørensen, Niels N.; Fuglsang, P.

    Forskning i aeroelasticitet EFP-2000. ed. / H. Aagaard Madsen. Vol. Risø-R-1272(DA) 2001. p. 11-14.

    Publication: ResearchBook chapter – Annual report year: 2001

  254. Published

    Viscous and aeroelastic effects on wind turbine blades. The Viscel project. / Chaviaropoulos, P.K.; Nikolaou, I.G.; Aggelis, K.; Sørensen, Niels N.; Montgomerie, B.; Geyr, H. von; Hansen, M.O.L.; Kang, S.; Voutsinas, S.; Dyrmose, S.Z.

    Wind energy for the new millennium. Proceedings. ed. / P. Helm; A. Zervos. München : WIP Renewable Energies, 2001. p. 347-350.

    Publication: ResearchArticle in proceedings – Annual report year: 2001

  255. Published

    Wind turbine airfoil catalogue. / Bertagnolio, F.; Sørensen, Niels N.; Johansen, Jeppe; Fuglsang, P.

    2001. 151 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1280(EN)).

    Publication: ResearchReport – Annual report year: 2001

  256. Published

    Yaw prediction of the NREL/NASA ames wind tunnel tests using CFD. / Sørensen, Niels N.; Michelsen, J.A.; Schreck, S.

    2001. Abstract from IEA R and D Wind Joint action meeting on aerodynamics of wind turbines, Athens (GR), 26-27 Nov, .

    Publication: ResearchConference abstract for conference – Annual report year: 2001

  257. 2000
  258. Published

    Effect of placing a diffuser around a wind turbine. / Hansen, M.O.L.; Sørensen, Niels N.; Flay, R.G.J.

    In: Wind Energy, Vol. 3, No. 4, 12.2000, p. 207-213.

    Publication: Research - peer-reviewJournal article – Annual report year: 2001

  259. Published

    2-D airfoil computations. / Sørensen, Niels N.

    2000. Abstract from Advanced Topics in Wind Turbine Aerodynamics, Lyngby, Denmark.

    Publication: ResearchConference abstract for conference – Annual report year: 2000

  260. Published

    3-D rotor computations. / Sørensen, Niels N.

    2000. Abstract from Advanced Topics in Wind Turbine Aerodynamics, Lyngby, Denmark.

    Publication: ResearchConference abstract for conference – Annual report year: 2000

  261. Published

    Application of DES turbulence model on airfoil flows. / Johansen, J.; Sørensen, Niels N.

    2000. Abstract from IEA Joint Action Committee on Aerodynamics Annex IV Aero Experts meeting, Boulder, CO, United States.

    Publication: ResearchConference abstract for conference – Annual report year: 2000

  262. Published

    CFD in wind energy. / Sørensen, Niels N.

    2000. Abstract from Advanced Topics in Wind Turbine Aerodynamics, Lyngby, Denmark.

    Publication: ResearchConference abstract for conference – Annual report year: 2000

  263. Published

    Detaljeret 3D CFD beregning med programmet EllipSys3D på National Research Energy Laboratory's (NREL's) 10 m rotor. / Sørensen, Niels N.

    Forskning i aeroelasticitet EFP-99. ed. / H. Aagaard Madsen. Vol. Risø-R-1196(DA) 2000. p. 17-25.

    Publication: ResearchBook chapter – Annual report year: 2000

  264. Published

    Evaluation of 3D effects from 3D CFD computations. / Sørensen, Niels N.

    2000. Abstract from IEA Joint Action Committee on Aerodynamics Annex IV Aero Experts meeting, Boulder, CO, United States.

    Publication: ResearchConference abstract for conference – Annual report year: 2000

  265. Published

    Mesh generation. / Sørensen, Niels N.

    2000. Abstract from Advanced Topics in Wind Turbine Aerodynamics, Lyngby, Denmark.

    Publication: ResearchConference abstract for conference – Annual report year: 2000

  266. Published

    NREL/NWTC aerodynamics code blind comparison. / Sørensen, Niels N.; Michelsen, J.A.

    2000. Abstract from 2. Science Panel meeting, NREL, Boulder, CO (US), 5-6 Dec, .

    Publication: ResearchConference abstract for conference – Annual report year: 2000

  267. Published

    Viscous and aeroelastic effects on wind turbine blades VISCEL. Task 2 report. / Sørensen, Niels N.; Sørensen, J.N.

    Roskilde : Risø National Laboratory, Wind Energy and Atmospheric Physics Department, 2000.

    Publication: ResearchReport – Annual report year: 2000

  268. 1999
  269. Published

    3D computations of the LM19 blade. Comparative study of ''standard case''. / Sørensen, Niels N.

    VISCWIND. Viscous effects on wind turbine blades. ed. / Sørensen J.N.Vol. DTU-ET-AFM-99-02 1999. p. 64-76.

    Publication: ResearchBook chapter – Annual report year: 1999

  270. Published

    3D computations of the LM19 blade. Parametrical study on blade extension. / Sørensen, Niels N.

    VISCWIND. Viscous effects on wind turbine blades. ed. / Sørensen J.N.Vol. DTU-ET-AFM-99-02 1999. p. 77-85.

    Publication: ResearchBook chapter – Annual report year: 1999

  271. Published

    3D rotor computations using CFD. / Sørensen, Niels N.

    1999. Paper presented at 12th IEA Symposium on Aerodynamics of Wind Turbines, Lyngby, Denmark.

    Publication: ResearchPaper – Annual report year: 1999

  272. Published

    Airfoil characteristics for the LM 19.1 blade derived from 3D CFD. / Bak, C.; Sørensen, Niels N.; Aagaard Madsen, H.

    IEA Joint action. Aerodynamics of wind turbines. ed. / B. Maribo Pedersen. Lyngby : Technical University of Denmark. Department of Fluid Mechanics, 1999. p. 85-89.

    Publication: ResearchArticle in proceedings – Annual report year: 1999

  273. Published

    Airfoil characteristics for wind turbines. / Bak, C.; Fuglsang, P.; Sørensen, Niels N.; Aagaard Madsen, Helge; Shen, W.Z.; Sørensen, Jens Nørkær.

    1999. 51 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1065(EN)).

    Publication: ResearchReport – Annual report year: 1999

  274. Published

    Derivation of airfoil characteristics for the LM 19.1 blade based on 3D CFD rotor calculations. / Bak, C.; Sørensen, Niels N.; Aagaard Madsen, H.

    Wind energy for the next millennium. Proceedings. ed. / E.L. Petersen; P. Hjuler Jensen; K. Rave; P. Helm; H. Ehmann. London : James and James Science Publishers, 1999. p. 89-92.

    Publication: ResearchArticle in proceedings – Annual report year: 1999

  275. 1998
  276. Published

    Examples of using CFD for Wind Turbine Aerodynamics. / Hansen, Martin O. L.; Sørensen, Jens Nørkær; Sørensen, Niels N.

    IEA Joint action. Aerodynamics of wind turbines. ed. / B. Maribo Pedersen. Lyngby : Technical University of Denmark. Department of Fluid Mechanics, 1998. p. 133-139.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 1998

  277. Published

    Extraction of Lift, Drag and Angle of Attack from Computed 3-D Viscous Flow around a rotating Blade. / Hansen, Martin O. L.; Sørensen, Niels N.; Sørensen, Jens Nørkær; Michelsen, Jess A.

    Proceedings of the European wind energy conference. ed. / R. Watson. Slane : Irish Wind Energy Association, 1998. p. 499-502.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 1998

  278. Published

    HypGrid2D a 2-D mesh generator. / Sørensen, Niels N.

    1998. 36 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1035(EN)).

    Publication: ResearchReport – Annual report year: 1998

  279. Published

    Numerical investigation of airfoil dynamic stall in simultaneous harmonic oscillatory and translatory motion. / Ekaterinaris, J.A.; Sørensen, Niels N.; Rasmussen, F.

    In: Journal of Solar Energy Engineering, Vol. 120, No. 1, 1998, p. 75-83.

    Publication: Research - peer-reviewJournal article – Annual report year: 1998

  280. Published

    Numerical simulation of screens in electrostatic precipitator inlets. / Simonsen, J.P.; Nielsen, N.F.; Sørensen, Niels N.; Lind, L.

    1998. Abstract from 7. International conference on electrostatic precipitation, Kyongju (KR), 20-25 Sep, .

    Publication: ResearchConference abstract for conference – Annual report year: 1998

  281. Published

    Numerical simulation of the Risø1-airfoil dynamic stall. / Bertagnolio, F.; Sørensen, Niels N.

    IEA Joint action. Aerodynamics of wind turbines. ed. / B. Maribo Pedersen. Lyngby : Technical University of Denmark. Department of Fluid Mechanics, 1998. p. 91-98.

    Publication: ResearchArticle in proceedings – Annual report year: 1998

  282. Published

    Ongoing research in wind turbine aerodynamics in Denmark. / Hansen, M.O.L.; Sørensen, Niels N.; Sørensen, J.N.

    1998. Abstract from 7. Workshop on wind engineering, Australasian Wind Energy Society, Auckland (NZ), 28-29 Sep, .

    Publication: ResearchConference abstract for conference – Annual report year: 1998

  283. Published

    Prediction of noise generated by low speed, separated, unsteady flow over an airfoil. / Dahl, K.S.; Sørensen, Niels N.; Ekaterinaris, J.A.

    European wind energy conference. Proceedings. ed. / R. Watson. Slane : Irish Wind Energy Association, 1998. p. 517-520.

    Publication: ResearchArticle in proceedings – Annual report year: 1998

  284. Published

    Profilkoefficienter til LM 19.1-vingen bestemt ud fra 3D CFD. / Bak, C.; Aagaard Madsen, Helge; Sørensen, Niels N.

    1998. 7 p. (Resultatblad AED-RB-7).

    Publication: ResearchReport – Annual report year: 1998

  285. Published

    Rotor aerodynamics. / Sørensen, Niels N.; Aagaard Madsen, H.; Hansen, M.O.L.; Michelsen, J.A.; Sørensen, J.N.

    Scientific computing report 1995-1997. ed. / J. Wasniewski. København : UNI-C, 1998. p. 77-81.

    Publication: ResearchBook chapter – Annual report year: 1998

  286. Published

    Rotor Performance Predictions using a Navier-Stokes Method. / Sørensen, Niels N.; Hansen, Martin Otto Laver.

    36th Aerospace Sciences Meeting and Exhibition. New York, NY : American Institute of Aeronautics & Astronautics, 1998. p. 52-59.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 1998

  287. Published

    Validation of a wind tunnel testing facility for blade surface pressure measurements. / Fuglsang, P.; Antoniou, Ioannis; Sørensen, Niels N.; Aagaard Madsen, Helge.

    1998. 81 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 981(EN)).

    Publication: ResearchReport – Annual report year: 1998

  288. 1997
  289. Published

    A global Navier-Stokes rotor prediction model. / Hansen, Martin Otto Lavér; Sørensen, Jens Nørkær; Michelsen, Jess A.; Sørensen, Niels N.

    35th Aerospace Sciences Meeting and Exhibition. Vol. AIAA-97-0970 Washington, DC : American Institute of Aeronautics & Astronautics, 1997.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 1997

  290. Published

    Extraction of lift, drag and angle of attack from computed 3-D viscous flow around a rotating blade. / Hansen, M.O.L.; Sørensen, Niels N.; Michelsen, J.A.

    1997. Abstract from 1997 European Wind Energy Conference , Dublin, Ireland.

    Publication: ResearchConference abstract for conference – Annual report year: 1997

  291. Published

    Modelling traffic pollution in streets. / Berkowicz, R.; Hertel, O.; Larsen, Søren Ejling; Sørensen, Niels N.; Nielsen, M.

    Roskilde : National Environmental Research Institute, 1997. 51 p.

    Publication: Research - peer-reviewBook – Annual report year: 1997

  292. Published

    Numerical investigation of airfoil dynamic stall in simultaneous harmonic oscillatory and translatory motion. / Ekaterinaris, J.A.; Sørensen, Niels N.; Rasmussen, F.

    35. Aerospace sciences meeting and exhibit. Vol. AIAA-97-0615 Washington, DC : American Institute of Aeronautics & Astronautics, 1997.

    Publication: ResearchArticle in proceedings – Annual report year: 1997

  293. Published

    Numerical simulation of the Risø1-airfoil dynamic stall. / Bertagnolio, F.; Sørensen, Niels N.

    1997. Abstract from 11th IEA aerodynamic symposium, Petten, Netherlands.

    Publication: ResearchConference abstract for conference – Annual report year: 1997

  294. Published

    Prediction of noise generated by low speed, separated, unsteady flow over an airfoil. / Dahl, K.S.; Sørensen, Niels N.; Ekaterinaris, J.A.

    1997. Abstract from 1997 European Wind Energy Conference , Dublin, Ireland.

    Publication: ResearchConference abstract for conference – Annual report year: 1997

  295. Published

    Rotor computations. / Sørensen, Niels N.

    1997. Abstract from 2nd Annual Meeting of the Nordic ERCOFTAC Pilot Center, Ebeltoft, Denmark.

    Publication: ResearchConference abstract for conference – Annual report year: 1997

  296. 1996
  297. Published

    Aerodynamiske 3D-simuleringer (bl.a. LM 19.1 vinge). / Sørensen, N.; Hansen, M.

    1996. Abstract from Temadag om vindmølleteknologiske forskningsprojekter, Risø (DK), 30 May, .

    Publication: ResearchConference abstract for conference – Annual report year: 1996

  298. Published

    Computational and experimental studies of separated flows past 3-D wind turbine rotors. / Sørensen, Niels N.

    1996. Abstract from 1st ERCOFTAC Nordic Pilot Center Meeting, Stockholm, Sweden.

    Publication: ResearchConference abstract for conference – Annual report year: 1996

  299. Published

    Computed 3D effects on rotating wind turbine blade. / Hansen, M.O.L.; Michelsen, J.A.; Sørensen, Niels N.

    1996 European Union wind energy conference. Proceedings. ed. / A. Zervos; H. Ehmann; P. Helm. Bedford : H.S. Stephens & Associates, 1996. p. 761-763.

    Publication: ResearchArticle in proceedings – Annual report year: 1996

  300. Published

    k-ω Turbulence models implementation and testing. / Sørensen, Niels N.

    1996. 19 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 864(EN)).

    Publication: ResearchReport – Annual report year: 1996

  301. Published

    Rotordiameterundersøgelse. / Sørensen, Niels N.

    1996. 2 p. (Resultatblad AED-RB-1).

    Publication: ResearchReport – Annual report year: 1996

  302. Published

    Static stall predictions. / Sørensen, Niels N.

    IEA Joint action. Aerodynamics of wind turbines. ed. / B. Maribo Pedersen. Lyngby : Technical University of Denmark. Department of Fluid Mechanics, 1996. p. 27-49.

    Publication: ResearchArticle in proceedings – Annual report year: 1996

  303. Published

    Three-dimensional separation effects on a simplified wind turbine blade. / Sørensen, Niels N.; Michelsen, J.A.

    Energy week. Conference and exhibition incorporating ETCE. Book 8: Wind energy. Vol. 1: Wind energy. Houston, TX : Penn Well, 1996. p. 158-163.

    Publication: ResearchArticle in proceedings – Annual report year: 1996

  304. 1995
  305. Published

    A comparative study between a dynamic stall model and experiments on a HAWT. / Christensen, H.F.; Sørensen, Niels N.; Chaviaropoulos, P.

    1995. Abstract from 1994 European Wind Energy Conference and Exhibition, Thessaloniki, Greece.

    Publication: ResearchConference abstract for conference – Annual report year: 1995

  306. Published

    Flows and mixing within a street canyon. / Larsen, Søren Ejling; Lund, S.W.; Nielsen, M.; Sørensen, Niels N.

    Highway and urban pollution. Abstracts. Middlesex : Middlesex University, 1995.

    Publication: ResearchConference abstract in proceedings – Annual report year: 1995

  307. Published

    General purpose flow solver applied to flow over hills. / Sørensen, Niels N.

    Risø National Laboratory, 1995. 157 p.

    Publication: ResearchDoctoral thesis – Annual report year: 1995

  308. Published

    Navier-Stokes solver for rotating wing. / Hansen, M.O.L.; Michelsen, J.A.; Sørensen, Niels N.

    5th European Wind Energy Association conference and exhibition. Conference proceedings. Oral sessions. Vol. 1. ed. / J.L. Tsipouridis. Thessaloniki : The Hellenic Wind Energy Association; The European Wind Energy Association, 1995. p. 557-561.

    Publication: ResearchArticle in proceedings – Annual report year: 1995

  309. 1994
  310. Published

    A comparative study between a dynamic stall model and experiments on a HAWT. / Christensen, H.F.; Sørensen, Niels N.; Chaviaropoulos, P.

    IEA Joint Action. 8. Symposium on aerodynamics of wind turbines. ed. / B. Maribo Pedersen. Lyngby : Technical University of Denmark. Department of Fluid Mechanics, 1994. p. 311-326.

    Publication: ResearchArticle in proceedings – Annual report year: 1994

  311. Published

    Navier-Stokes solver for rotating wing. / Hansen, M.O.L.; Michelsen, J.A.; Sørensen, Niels N.

    1994. Abstract from 1994 European Wind Energy Conference and Exhibition, Thessaloniki, Greece.

    Publication: ResearchConference abstract for conference – Annual report year: 1994

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