• Frederiksborgvej 399, 114, S37-S39

    4000 Roskilde

    Denmark

1992 …2021

Research output per year

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Research Output

2020

Investigations of aerodynamic drag forces during structural blade testing using high-fidelity fluid–structure interaction

Grinderslev, C., Belloni, F., Horcas, S. G. & Sørensen, N. N., 2020, In : Wind Energy Science. 5, 2, p. 543-560 18 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
7 Downloads (Pure)

Spectral analysis of New MEXICO standstill measurements to investigate vortex shedding in deep stall

Khan, M. A., Simão Ferreira, C., Schepers, G. J. & Sørensen, N. N., 2020, In : Wind Energy. 23, 1, p. 31-44

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
45 Downloads (Pure)
2019

Laminar-turbulent transition detection on airfoils by high-frequency microphone measurements

Özçakmak, Ö. S., Sørensen, N. N., Aagaard Madsen, H. & Sørensen, J. N., 2019, In : Wind Energy. 22, 10, p. 1356-1370 15 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Multipoint high-fidelity CFD-based aerodynamic shape optimization of a 10MW wind turbine

Madsen, M. H. A., Zahle, F., Sørensen, N. N. & Martins, J. R. R. A., 2019, In : Wind Energy Science. 4, p. 163-192

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
184 Downloads (Pure)

Multipoint high-fidelity CFD-based aerodynamic shape optimization of a 10 MW wind turbine

Madsen, M. H. A., Zahle, F., Sørensen, N. N. & Martins, J. R. R. A., 2019, In : Wind Energy Science. 4, 2, p. 163-192 30 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
165 Downloads (Pure)

Suppressing Vortex Induced Vibrations of Wind Turbine Blades with Flaps

Horcas, S. G., Madsen, M., Sørensen, N. N. & Zahle, F., 2019, Recent Advances in CFD for Wind and Tidal Offshore Turbines. Ferrer, E. & Montlaur, A. (eds.). Switzerland: Springer, p. 11-24 14 p. (Springer Tracts in Mechanical Engineering (STME)).

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

Open Access
File
38 Downloads (Pure)

Three-dimensional aerodynamic shape optimization of wind turbine rotors

Dicholkar, A., Zahle, F., Sørensen, N. N. & McWilliam, M., 2019. 2 p.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

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

Advanced Wind Tunnel Boundary Simulation for Kevlar Wall Aeroacoustic Wind Tunnels

Devenport, W., Brown, K., Borgoltz, A., Paterson, E., Bak, C., Sørensen, N. N., Olsen, A. S., Gaunaa, M., Fischer, A. & Grinderslev, C., 2018.

Research output: Contribution to conferencePaperResearchpeer-review

Open Access
File
243 Downloads (Pure)

Aerodynamic effects of compressibility for wind turbines at high tip speeds

Sørensen, N. N., Bertagnolio, F., Jost, E. & Lutz, T., 2018, In : Journal of Physics: Conference Series. 1037, 2, 1 p., 022003.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
374 Downloads (Pure)

CFD simulations of a conceptual Rain Erosion Teste

Sørensen, N. N., Bertagnolio, F., Gaunaa, M. & Olsen, A. S., 2018, DTU Wind Energy. 24 p. (DTU Wind Energy I; No. 753).

Research output: Book/ReportReportResearch

Comparison of 3D transitional CFD simulations for rotating wind turbine wings with measurements: Paper

Schaffarczyk, A. P., Boisard, R., Boorsma, K., Dose, B., Lienard, C., Lutz, T., Madsen, H. Å., Rahimi, H., Reichstein, T., Schepers, G., Sørensen, N., Stoevesandt, B. & Weihing, P., 2018, In : Journal of Physics: Conference Series. 1037, 2, 9 p., 022012.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
308 Downloads (Pure)
Open Access
File
298 Downloads (Pure)

Extension of EllipSys to compressible flows - Implementation and verifications

Bertagnolio, F. & Sørensen, N. N., 2018, DTU Wind Energy. 23 p. (DTU Wind Energy E; No. 170).

Research output: Book/ReportReportResearch

Open Access
File
99 Downloads (Pure)

Final results from the EU project AVATAR: aerodynamic modelling of 10 MW wind turbines

Schepers, J. G., Boorsma, K., Sorensen, N., Voutsinas, S. G., Sieros, G., Rahimi, H., Heisselmann, H., Jost, E., Lutz, T., Maeder, T., Gonzalez, A., Ferreira, C., Stoevesandt, B., Barakos, G., Lampropoulos, N., Croce, A. & Madsen, J., 2018, In : Journal of Physics: Conference Series. 1037, 2, 17 p., 022013.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
213 Downloads (Pure)

Flow in complex terrain - a Large Eddy Simulation comparison study

Berg, J., Troldborg, N., Menke, R., Patton, E. G., Sullivan, P. P., Mann, J. & Sørensen, N. N., 2018, In : Journal of Physics: Conference Series. 1037, 7, 10 p., 072015.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
410 Downloads (Pure)
Open Access
File
376 Downloads (Pure)

Investigation of droplet path in a rain erosion tester

Gaunaa, M., Sørensen, N. N., Johansen, N. F-J., Olsen, A. S., Bak, C. & Andersen, R. B., 2018, In : Journal of Physics: Conference Series. 1037, 6, 10 p., 062030.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
240 Downloads (Pure)

Measured aerodynamic forces on a full scale 2MW turbine in comparison with EllipSys3D and HAWC2 simulations

Madsen, H. A., Sørensen, N. N., Bak, C., Troldborg, N. & Pirrung, G., 2018, In : Journal of Physics: Conference Series. 1037, 2, 10 p., 022011.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
277 Downloads (Pure)

Predicting the Influence of Surface Protuberance on the Aerodynamic Characteristics of a NACA 633-418: Paper

Kruse, E. K., Sørensen, N. N. & Bak, C., 2018, In : Journal of Physics: Conference Series. 1037, 2, 10 p., 022008.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
190 Downloads (Pure)

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)

The influence of wing twist on pressure distribution and flow topology

Kiefer, J., Sørensen, N. N., Hultmark, M. & Hansen, M. O. L., 2018, In : Journal of Physics: Conference Series. 1037, 2, 8 p., 022036.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
253 Downloads (Pure)
2017

A 1D version of EllipSys

van der Laan, P. & Sørensen, N. N., 2017, 24 p. (DTU Wind Energy E; No. 0141).

Research output: Book/ReportReportResearch

Open Access
File
214 Downloads (Pure)

A new k-epsilon model consistent with Monin-Obukhov similarity theory

van der Laan, P., Kelly, M. C. & Sørensen, N. N., 2017, In : Wind Energy. 20, 3, p. 479–489 11 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
1010 Downloads (Pure)

CFD for Atmospheric Flows and Wind Engineering, Lecture Series 2016-2017

Sørensen, N. N., Bechmann, A., Boudreault, L-E., Koblitz, T., Sogachev, A. & Laan, M., 2017, 33 p.

Research output: Book/ReportReportResearch

Challenges in simulating coastal effects on an offshore wind farm: Paper

van der Laan, P., Peña, A., Volker, P., Hansen, K. S., Sørensen, N. N., Ott, S. & Hasager, C. B., 2017, In : Journal of Physics: Conference Series. 854, 10 p., 012046.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
160 Downloads (Pure)

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)

Rotors in Complex Inflow, AVATAR, WP2

Sørensen, N. N., 2017

Research output: Non-textual formSound/Visual production (digital)Research

Open Access
File
58 Downloads (Pure)

Simulating coastal effects on an offshore wind farm

van der Laan, P., Pena Diaz, A., Volker, P., Hansen, K. S., Sørensen, N. N., Ott, S., Hasager, C. B. & Hasager, C. B., 2017.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Open Access
File
126 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

Why the Coriolis force turns a wind farm wake clockwise in the Northern Hemisphere

van der Laan, P. & Sørensen, N. N., 2017, In : Wind Energy Science. 2, p. 285-294

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
385 Downloads (Pure)
2016

Aerodynamically shaped vortex generators

Hansen, M. O. L., Velte, C. M., Øye, S., Hansen, R., Sørensen, N. N., Madsen, J. & Mikkelsen, R., 2016, In : Wind Energy. 19, 3, p. 563–567 5 p.

Research output: Contribution to journalJournal articleResearchpeer-review

2 Downloads (Pure)

CFD code comparison for 2D airfoil flows

Sørensen, N. N., Méndez, B., Muñoz, A., Sieros, G., Jost, E., Lutz, T., Papadakis, G., Voutsinas, S., Barakos, G. N., Colonia, S., Baldacchino, D., Baptista, C. & Ferreira, C. M. D., 2016, In : Journal of Physics: Conference Series (Online). 753, 11 p., 082019.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
454 Downloads (Pure)

CFD computations of the second round of MEXICO rotor measurements

Sørensen, N. N., Zahle, F., Boorsma, K. & Schepers, G., 2016, In : Journal of Physics: Conference Series (Online). 753, 10 p., 022054.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
222 Downloads (Pure)

Comparison of OpenFOAM and EllipSys3D for neutral atmospheric flow over complex terrain

Cavar, D., Réthoré, P-E., Bechmann, A., Sørensen, N. N., Martinez, B., Zahle, F., Berg, J. & Kelly, M. C., 2016, In : Wind Energy Science. 1, p. 55–70

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
1227 Downloads (Pure)

Computing the flow past Vortex Generators: Comparison between RANS Simulations and Experiments

Manolesos, M., Sørensen, N. N., Troldborg, N., Florentie, L., Papadakis, G. & Voutsinas, S., 2016, In : Journal of Physics: Conference Series (Online). 753, 13 p., 022014.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
246 Downloads (Pure)

Demonstration of partial pitch 2-bladed wind turbine

Kim, T., Zahle, F., Troldborg, N., Heinz, J. C., Sørensen, N. N., Hansen, M. H., Yde, A., Pedersen, M. M., Verelst, D. R., Larsen, T. J. & Kock, C. W., 2016, DTU Wind Energy. 173 p. (DTU Wind Energy I; No. 0447(EN)).

Research output: Book/ReportReportResearch

Discontinuous Galerkin methodology for Large-Eddy Simulations of wind turbine airfoils

Frére, A., Sørensen, N. N., Hillewaert, K. & Winckelmans, G., 2016, In : Journal of Physics: Conference Series (Online). 753, 11 p., 022037.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
220 Downloads (Pure)

Experimental benchmark and code validation for airfoils equipped with passive vortex generators

Baldacchino, D., Manolesos, M., Ferreira, C. M. D., González Salcedo, A., Aparicio, M., Chaviaropoulos, T., Diakakis, K., Florentie, L., Ramos García, N., Papadakis, G., Sørensen, N. N., Timmer, N., Troldborg, N., Voutsinas, S. & van Zuijlen, A., 2016, In : Journal of Physics: Conference Series (Online). 753, 13 p., 022002.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
561 Downloads (Pure)

Fluid-structure interaction computations for geometrically resolved rotor simulations using CFD

Heinz, J. C., Sørensen, N. N. & Zahle, F., 2016, In : Wind Energy. 19, 12, p. 2205–2221 17 p.

Research output: Contribution to journalJournal articleResearchpeer-review

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)

Modeling dynamic stall on wind turbine blades under rotationally augmented flow fields

Guntur, S., Sørensen, N. N., Schreck, S. & Bergami, L., 2016, In : Wind Energy. 19, 3, p. 383–397 15 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Simulations of wind turbine rotor with vortex generators

Sørensen, N. N., Zahle, F. & Sørensen, N. N., 2016, In : Journal of Physics: Conference Series (Online). 753, 10 p., 022057.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
570 Downloads (Pure)

Testing of self-similarity and helical symmetry in vortex generator flow simulations

Fernández-Gámiz, U., Velte, C. M., Réthoré, P-E., Sørensen, N. N. & Egusquiza, E., 2016, In : Wind Energy. 19, 6, p. 1043–1052 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

1 Downloads (Pure)

Vortex-induced vibrations on a modern wind turbine blade

Heinz, J. C., Sørensen, N. N., Zahle, F. & Skrzypinski, W. R., 2016, In : Wind Energy. 19, 11, p. 2041–2051 11 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Why the Coriolis force turns a wind farm wake to the right in the Northern Hemisphere

van der Laan, P. & Sørensen, N. N., 2016, In : Journal of Physics: Conference Series (Online). 753, 7 p., 032031.

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
173 Downloads (Pure)

An improved k-ε model applied to a wind turbine wake in atmospheric turbulence

Laan, van der, P. M., Sørensen, N. N., Réthoré, P-E., Mann, J., Kelly, M. C., Troldborg, N., Schepers, J. G. & Machefaux, E., 2015, In : Wind Energy. 18, 5, p. 889–907

Research output: Contribution to journalJournal articleResearchpeer-review

File
670 Downloads (Pure)

A study on rotational augmentation using CFD analysis of flow in the inboard region of the MEXICO rotor blades

Guntur, S. & Sørensen, N. N., 2015, In : Wind Energy. 18, 4, p. 745–756

Research output: Contribution to journalJournal articleResearchpeer-review

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