• Frederiksborgvej 399, 114, S37-S39

    4000 Roskilde

    Denmark

1992 …2021

Research output per year

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Research Output

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Article in proceedings
2019

Transition characteristics measured on a 2MW 80m diameter wind turbine rotor in comparison with transition data from wind tunnel measurements

Aagaard Madsen, H., Özçakmak, Ö. S., Bak, C., Troldborg, N. & Sørensen, N. N., 2019, Proceedings of the AIAA Scitech 2019 Forum. Aerospace Research Central (ARC), 16 p. 0801

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
155 Downloads (Pure)
2018

Suppresing Vortex Induced Vibrations of Wind Turbine blades with flaps

Horcas, S. G., Madsen, M. H. A., Sørensen, N. N. & Zahle, F., 2018, Proceedings of the 7th European Conference on Computational Fluid Dynamics (ECFD 7). European Community on Computational Methods in Applied Sciences, 12 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
94 Downloads (Pure)
2017

Large-Eddy Simulation of turbine wake in complex terrain: Paper

Berg, J., Troldborg, N., Sørensen, N. N., Patton, E. G. & Sullivan, P. P., 2017, Wake Conference 2017 . Vol. 854. 012003. (Journal of Physics: Conference Series).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
433 Downloads (Pure)

Summary of the Blind Test Campaign to predict the High Reynolds number performance of DU00-W-210 airfoil

Yilmaz, Ö. C., Pires, O., Munduate, X., Sørensen, N. N., Reichstein, T., Schaffarczyk, P., Diakakis, K., Papadakis, G., Daniele, E., Schwarz, M., Lutz, T. & Prieto, R., 2017, Proceedings of 35th Wind Energy Symposium. American Institute of Aeronautics and Astronautics, 12 p. 2017-0915

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

2016

Latest results from the EU project AVATAR: Aerodynamic modelling of 10 MW wind turbines

Schepers O. Ceyhan, J. G., Boorsma, K., Gonzalez, A., Munduate, X., Pires, O., Sørensen, N. N., Ferreira, C. M. D., Sieros, G., Madsen, J., Voutsinas, S., Lutz, T., Barakos, G., Colonia, S., Heißelmann, H., Meng, F. & Croce, A., 2016, The Science of Making Torque from Wind (TORQUE 2016). IOP Publishing, Vol. 753. 16 p. (Journal of Physics: Conference Series (Online)).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

File
324 Downloads (Pure)
2015

AVATAR: AdVanced Aerodynamic Tools for lArge Rotors

Schepers, J. C., Ceyhan, O., Savenije, F. J., Stettner, M., Kooijman, H. J., Chaviarapoulos, P., Sieros, G., Ferreira, C. S., Sørensen, N. N., Wächter, M., Stoevesandt, B., Lutz, T., Gonzalez, A., Barakos, G., Voutsinas, A., Croce, A. & Madsen, J., 2015, Proceedings of 33rd ASME Wind Energy Symposium. American Society of Mechanical Engineers, Vol. 1. p. 291-310

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Simulation of a MW rotor equipped with vortex generators using CFD and an actuator shape model

Troldborg, N., Zahle, F. & Sørensen, N. N., 2015, Proceedings of 53rd AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics, 10 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

2 Downloads (Pure)
2014

Complex terrain wind resource estimation with the wind-atlas method: Prediction errors using linearized and nonlinear CFD micro-scale models

Troen, I., Bechmann, A., Kelly, M. C., Sørensen, N. N., Réthoré, P-E., Cavar, D. & Ejsing Jørgensen, H., 2014, Proceedings of EWEA 2014. European Wind Energy Association (EWEA), 10 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
2592 Downloads (Pure)

Comprehensive Aerodynamic Analysis of a 10 MW Wind Turbine Rotor Using 3D CFD

Zahle, F., Bak, C., Sørensen, N. N., Guntur, S. & Troldborg, N., 2014, Proceedings of 32nd ASME Wind Energy Symposium. American Society of Mechanical Engineers, 15 p. AIAA 2014-0359

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

2013

Experimental and numerical investigation of 3D aerofoil characteristics on a MW wind turbine

Troldborg, N., Bak, C., Sørensen, N. N., Aagaard Madsen, H., Réthoré, P-E., Zahle, F. & Guntur, S., 2013, Proceedings - European Wind Energy Conference & Exhibition 2013. European Wind Energy Association (EWEA), 10 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

File
869 Downloads (Pure)

Multigrid technique and Optimized Schwarz method on block-structured grids with discontinuous interfaces

Kolmogorov, D., Sørensen, N. N., Shen, W. Z. & Sørensen, J. N., 2013, Proceedings of 21st AIAA Computational Fluid Dynamics Conference: Numerical Algorithms for Inviscid and Viscous Flows II. American Institute of Aeronautics and Astronautics, 15 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Nonlinear Eddy Viscosity Models applied to Wind Turbine Wakes

Laan, van der, P. M., Sørensen, N. N., Réthoré, P-E., Mann, J., Kelly, M. C. & Schepers, J. G., 2013, Proceedings of the 2013 International Conference on aerodynamics of Offshore Wind Energy Systems and wakes (ICOWES2013). Technical University of Denmark, p. 514-525

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
448 Downloads (Pure)

Rotor Performance Enhancement Using Slats on the Inner Part of a 10MW Rotor

Gaunaa, M., Zahle, F., Sørensen, N. N., Bak, C. & Réthoré, P-E., 2013, Proceedings og EWEA 2013. European Wind Energy Association (EWEA), Vol. 2. p. 1293-1302 9 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
305 Downloads (Pure)
2012

Analysis of 3D Stall Models for Wind Turbine Blades Using Data from the MEXICO Experiment

Guntur, S., Bak, C. & Sørensen, N. N., 2012, Proceedings of the 13th International Conference on Wind Engineering. 8 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Comparison of four different models of vortex generators

Fernandez, U., Réthoré, P-E., Sørensen, N. N., Velte, C. M., Zahle, F. & Egusquiza, E., 2012, Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 12 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
1736 Downloads (Pure)

Design and Wind Tunnel Testing of a Thick, Multi-Element High-Lift Airfoil

Zahle, F., Gaunaa, M., Sørensen, N. N. & Bak, C., 2012, Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 10 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
767 Downloads (Pure)

How fine is fine enough when doing CFD terrain simulations

Sørensen, N. N., Bechmann, A., Réthoré, P-E., Cavar, D., Kelly, M. C. & Troen, I., 2012, Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), p. 1167-1172 6 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
269 Downloads (Pure)

Modelling of unsteady airfoil aerodynamics for the prediction of blade standstill vibrations

Skrzypinski, W. R., Gaunaa, M., Sørensen, N. N. & Zahle, F., 2012, Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 9 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
291 Downloads (Pure)

Quantification of the Effects of Using Slats on the Inner Part of a 10MW Rotor

Gaunaa, M., Zahle, F., Sørensen, N. N. & Bak, C., 2012, Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), Vol. 2. p. 919-930 12 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
201 Downloads (Pure)

Self-similarity and helical symmetry in vortex generator flow simulations

Fernandez, U., Velte, C. M., Réthoré, P-E. & Sørensen, N. N., 2012, Proceedings of Torque 2012, The science of making torque from wind. 10 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

File
521 Downloads (Pure)

Simulations of a rotor with active deformable trailing edge flaps in half-wake inflow: Comparison of EllipSys 3D with HAWC2

Barlas, T. K., Zahle, F., Sørensen, N. N., Gaunaa, M. & Bergami, L., 2012, Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 13 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
602 Downloads (Pure)
2011

A computational efficient algorithm for the aerodynamic response of non-straight blades

Gaunaa, M., Réthoré, P-E. M., Sørensen, N. N. & Døssing, M., 2011, Proceedings. European Wind Energy Association (EWEA), 16 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Open Access
File
152 Downloads (Pure)

A computationally efficient method for determining the aerodynamic performance of kites for wind energy applications

Gaunaa, M., Paralta Carqueija, P. F., Réthoré, P-E. M. & Sørensen, N. N., 2011, Proceedings. European Wind Energy Association (EWEA)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Open Access
File
397 Downloads (Pure)

CFD Simulations of the Mexico Wind Tunnel and Wind Turbine

Réthoré, P-E. M., Zahle, F., Sørensen, N. N. & Bechmann, A., 2011, Proceedings. European Wind Energy Association (EWEA)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Open Access
File
360 Downloads (Pure)

Mexico Wind Tunnel and Wind Turbine modelled in CFD

Réthoré, P-E. M., Sørensen, N. N., Zahle, F., Bechmann, A. & Aagaard Madsen, H., 2011, Proceedings. AIAA, p. AIAA-2011-3373

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Unsteady Navier-Stokes Simulations of a Rotor Operating in Wake

Zahle, F., Aagaard Madsen, H. & Sørensen, N. N., 2011, Proceedings. European Wind Energy Association (EWEA)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Open Access
File
106 Downloads (Pure)
2010

A Comparison of Two Devices for Distributed Active Load Control of Wind Turbine Blades

Bæk, P., Gaunaa, M., Sørensen, N. N. & Fuglsang, P., 2010, Torque 2010: The science of making torque from wind. European Wind Energy Association (EWEA), p. 611-617

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

2 Downloads (Pure)

Blind Comparison Simulation Cases

Bechmann, A., Berg, J., Courtney, M., Ejsing Jørgensen, H., Mann, J. & Sørensen, N. N., 2010, Presentations. Roskilde: Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, p. 153-161 162 p. (Denmark. Forskningscenter Risoe. Risoe-R; No. 1745(EN)).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Open Access
File
88 Downloads (Pure)

Computation of the NREL Phase-VI Rotor In Pitch Motion During Standstill

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

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Modeling Issues with Wind Turbine Wake and Atmospheric Turbulence

Réthoré, P-E. M., Sørensen, N. N. & Bechmann, A., 2010, Torque 2010: The science of making torque from wind. European Wind Energy Association (EWEA), p. 349-357

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

1 Downloads (Pure)

The DAN-AERO MW ecperiments

Aagaard Madsen, H., Bak, C., Schmidt Paulsen, U., Gaunaa, M., Sørensen, N. N., Fuglsang, P., Romblad, J., Olsen, N. A. ., Enevoldsen, P., Laursen, J. & Jensen, L., 2010, Conference proceedings. Reston, VA (US): American Institute of Aeronautics and Astronautics, p. AIAA 2010-0645

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Thick Multiple Element Airfoils for use on the Inner Part of Wind Turbine Rotors

Gaunaa, M., Sørensen, N. N. & Bak, C., 2010, Torque 2010: The science of making torque from wind. European Wind Energy Association (EWEA), p. 135-152

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

1 Downloads (Pure)

Upwind Navier-Stokes Rotor Flow Simulations with ground proximity and shear

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

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

1 Downloads (Pure)

Validation of an Actuator Disc Model

Réthoré, P-E. M., Sørensen, N. N. & Zahle, F., 2010, EWEC 2010 Proceedings online. European Wind Energy Association (EWEA)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Open Access
File
531 Downloads (Pure)
2009

Calculations of Flow around an Airfoil with a Trailing Edge Flap by Use of an Immersed Boundary Method

Behrens, T., Zhu, W. J., Shen, W. Z., Sørensen, J. N., Sørensen, N. N. & Wedel-Heinen, J. J., 2009, EWEC 2009 Proceedings online. EWEC

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Open Access
File
103 Downloads (Pure)

CFD simulation of the MEXICO rotor wake

Bechmann, A. & Sørensen, N. N., 2009, EWEC 2009 Scientific proceedings. EWEC, p. 64-68

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Characterisation of the unsteady flow in the nacelle region of a modern wind turbine

Zahle, F. & Sørensen, N. N., 2009, EWEC 2009 Proceedings online. EWEC, p. 1653-1680

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Open Access
File
127 Downloads (Pure)

Imposing Resolved Turbulence by an Actuator in a Detached Eddy Simulation of an Airfoil

Gilling, L., Sørensen, N. N. & Rethore, P-E. M., 2009, EWEC 2009 Proceedings online. EWEC

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Open Access
File
294 Downloads (Pure)

Study of the atmospheric wake turbulence of a CFD actuator disc model

Rethore, P-E. M., Sørensen, N. N., Bechmann, A. & Zahle, F., 2009, EWEC 2009 Proceedings online. EWEC

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Open Access
File
461 Downloads (Pure)
2008

Actuator disc model using a modified Rhie-Chow/SIMPLE pressure correction algorithm. Comparison with analytical solutions

Rethore, P-E. M. & Sørensen, N. N., 2008, Conference proceedings (online). European Wind Energy Association (EWEA)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

File
1307 Downloads (Pure)

Aeroelastic stability of suspension bridges using CFD

Stærdahl, J. W., Sørensen, N. N. & Nielsen, S. R. K., 2008, Shell and spatial structures: Structural architecture - towards the future looking to the past. Venice: University Iuav of Venice

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

File
868 Downloads (Pure)

A Stochastic Static Stall Model Applied to Wing Turbine Blade

Bertagnolio, F., Rasmussen, F., Madsen Aagaard, H., Sørensen, N. N. & Johansen, J., 2008, Technical papers. Reston, VA (US): American Institute of Aeronautics and Astronautics, Vol. AIAA-2008-6723.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

CFD modeling of laminar-turbulent transition for airfoils and rotors using the γ - Reθ model

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

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

CFD Modelling of Laminar-Turbulent Transition for Airfoils and Rotors

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

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Current aerodynamic research activities and recent results from Risø DTU

Rasmussen, F., Madsen Aagaard, H., Bak, D. C. & Sørensen, N. N., 2008, Proceedings (on CD-ROM). American Wind Energy Association (AWEA)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Increased Aerodynamic Efficiency on Wind Turbine Rotors using Winglets

Johansen, J., Gaunaa, M. & Sørensen, N. N., 2008, Technical papers. Reston, VA (US): American Institute of Aeronautics and Astronautics, Vol. AIAA-2008-6728.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Overset Grid Flow Simulation on a Modern Wind Turbine

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

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Rotor aerodynamics in atmospheric shear flow

Zahle, F. & Sørensen, N. N., 2008, Scientific proceedings. Brussels: European Wind Energy Conference and Exhibition, p. 120-124

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

2007

3D Navier-Stokes simulations of a rotor designed for maximum aerodynamic efficiency

Johansen, J., Madsen Aagaard, H., Gaunaa, M., Bak, D. C. & Sørensen, N. N., 2007, [Technical papers] presented at the 42. AIAA aerospace sciences meeting and exhibit. Reston, VA: American Institute of Aeronautics and Astronautics, (AIAA-2007-217).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Atmospheric flow over terrain using hybrid RANS/LES

Bechmann, A., Sørensen, N. N. & Johansen, J., 2007, Scientific proceedings. European Wind Energy Association (EWEA), p. 9-19

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review