Articles | Volume 2, issue 1
Research article
20 Jan 2017
Research article |  | 20 Jan 2017

Comparison of a coupled near- and far-wake model with a free-wake vortex code

Georg Pirrung, Vasilis Riziotis, Helge Madsen, Morten Hansen, and Taeseong Kim

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Cited articles

Andersen, P. B.: Advanced Load Alleviation for Wind Turbines using Adaptive Trailing Edge Flaps: Sensoring and Control, PhD thesis, The Technical University of Denmark, Roskilde, Denmark, 133 pp., 2010.
Bak, C., Bitsche, R., Yde, A., Kim, T., Hansen, M., Zahle, F., Gaunaa, M., Blasques, J., Døssing, M., Wedel Heinen, J., and Behrens, T.: Light Rotor: The 10-MW reference wind turbine, in: Proceedings of EWEA 2012 – European Wind Energy Conference & Exhibition, European Wind Energy Association (EWEA), 10 pp., 2012.
Beddoes, T. S.: A near wake dynamic model, Aerodynamics and Aeroacoustics National Specialist Meeting, 25–27 February 1987, Arlington, TX, USA, 1987.
Chassapoyiannis, P. and Voutsinas, S. G.: Aerodynamic Simulations of the flow around a Horizontal Axis Wind Turbine using the GAST software, Deliverable 2.2 of THALIS – NTUA: Development of know-how for the aeroelastic analysis and the design, optimization of wind turbines MIS: 379421 project, 2013.
Dieterich, O., Langer, H., Sneider, O., Imbert, G., Hounjet, M., Riziotis, V., Cafarelli, I., Calvo Alonso, R., Clerc, C., and Pengel, K.: HeliNOVI: Current vibration research activities, 31st European Rotorcraft forum, Florence, Italy, 13–15 September 2005, 83.1–83.14, 2005.

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Short summary
The certification process of a wind turbine requires simulations of a coupled structural and aerodynamic wind turbine model in many different external conditions. Due to the large number of load cases, the complexity of the aerodynamics models has to be limited. In this paper, a simplified vortex method based aerodynamics model is described. It is shown that this model, which is fast enough for use in a certification context, can produce results similar to those of a more complex vortex model.