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

The Science of Making Torque from Wind

Barlas, Thanasis^1 ; Jost, Eva^2 ; Pirrung, Georg^1 ; Tsiantas, Theofanis^3 ; Riziotis, Vasilis^3 ; Navalkar, Sachin T.^4 ; Lutz, Thorsten^2 ; Van Wingerden, Jan-Willem^4

Technical University of Denmark, Department of Wind Energy, Aerodynamic Design and Loads and Control, DTU Risø Campus, Fredriksborgvej 399, Roskilde

4000, Denmark^1

Institute of Aerodynamics and Gas Dynamics, University of Stuttgart, Pfaffenwaldring 21, Stuttgart

70569, Germany^2

National Technical University of Athens, School of Mechanical Engineering, Section of Fluids, Heroon Polytechniou 9, Zografou

15780, Greece^3

Delft University of Technology, Delft Center for Systems and Control, Faculty of Mechanical Engineering, Delft

2628 CD, Netherlands^4

关键词: Accuracy Improvement;    Active flaps;    Aerodynamic predictions;    Axial loading;    Engineering models;    Numerical code;    Rotor aerodynamics;    Wind turbine blades;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/2/022027/pdf
DOI  :  10.1088/1742-6596/753/2/022027

来源: IOP

【 摘 要 】

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.