Niels N. Sørensen

  1. 2014
  2. 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

  3. E-pub ahead of print
  4. Published
  5. Published
  6. 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

  7. 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

  8. Published
  9. Published
  10. 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

  11. 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

  12. E-pub ahead of print
  13. 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

  14. 2013
  15. 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

  16. 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

  17. 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

  18. 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

  19. E-pub ahead of print
  20. Published
  21. 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

  22. 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

  23. 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

  24. 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

  25. 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

  26. 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

  27. 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

  28. 2012
  29. 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

  30. 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

  31. 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

  32. 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

  33. 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

  34. 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

  35. 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

  36. 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

  37. 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

  38. Published
  39. 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

  40. 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

  41. 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

  42. 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

  43. 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

  44. 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

  45. 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

  46. 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

  47. 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

  48. 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

  49. 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

  50. 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

  51. 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

  52. 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

  53. 2011
  54. Published
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