Niels N. Sørensen

  1. 2014
  2. 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

  3. Published
  4. 2013
  5. 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

  6. E-pub ahead of print
  7. 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

  8. 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

  9. E-pub ahead of print
  10. Published
  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. E-pub ahead of print
  19. E-pub ahead of print
  20. 2012
  21. 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

  22. 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

  23. 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

  24. 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

  25. 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

  26. 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

  27. 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

  28. 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

  29. 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

  30. Published
  31. 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

  32. 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

  33. 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

  34. 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

  35. 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

  36. 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

  37. 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

  38. 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

  39. 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

  40. 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

  41. 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

  42. 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

  43. 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

  44. 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

  45. 2011
  46. Published
  47. 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

  48. 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

  49. Published
  50. 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

  51. 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

  52. 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

  53. 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

  54. 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

  55. 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

  56. Published
  57. 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

  58. Published
  59. 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

  60. 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

  61. 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

  62. 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

  63. 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

  64. Published
  65. 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

  66. 2010
  67. 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

  68. 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

  69. 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

  70. 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

  71. 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

  72. 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

  73. 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

  74. 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

  75. 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

  76. 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

  77. 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

  78. 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

  79. 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

  80. 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

  81. 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

  82. 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

  83. 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

  84. 2009
  85. 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

  86. 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

  87. 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

  88. 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

  89. 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

  90. 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

  91. 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

  92. 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

  93. 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

  94. 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

  95. 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

  96. 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

  97. 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

  98. 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

  99. 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

  100. 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

  101. 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

  102. 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

  103. 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

  104. 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

  105. 2008
  106. 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

  107. 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

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