Benchmarking aerodynamic prediction of unsteady rotor aerodynamics of active flaps on wind turbine blades using ranging fidelity tools

Athanasios Barlas, Eva Jost, Georg Pirrung, Theofanis Tsiantas, Vasilis Riziotis, Sachin T. Navalkar, Thorsten Lutz, Jan-Willem van Wingerden

Research output: Contribution to journalConference articleResearchpeer-review

264 Downloads (Pure)


Simulations of a stiff rotor configuration of the DTU 10MW Reference Wind Turbine are performed in order to assess the impact of prescribed flap motion on the aerodynamic loads on a blade sectional and rotor integral level. Results of the engineering models used by DTU (HAWC2), TUDelft (Bladed) and NTUA (hGAST) are compared to the CFD predictions of USTUTT-IAG (FLOWer). Results show fairly good comparison in terms of axial loading, while alignment of tangential and drag-related forces across the numerical codes needs to be improved, together with unsteady corrections associated with rotor wake dynamics. The use of a new wake model in HAWC2 shows considerable accuracy improvements.
Original languageEnglish
Article number022027
Book seriesJournal of Physics: Conference Series (Online)
Number of pages8
Publication statusPublished - 2016
EventThe Science of Making Torque from Wind 2016 - Technische Universität München (TUM), Munich, Germany
Duration: 5 Oct 20167 Oct 2016
Conference number: 6


ConferenceThe Science of Making Torque from Wind 2016
LocationTechnische Universität München (TUM)
Internet address

Cite this