Preprint article · Journal article
Evaluation of different methods for determining the angle of attack on wind turbine blades with CFD results under axial inflow conditions
University of Oldenburg1
ECN Wind Energy Technology2
Department of Wind Energy, Technical University of Denmark3
Fluid Mechanics, Department of Wind Energy, Technical University of Denmark4
German Aerospace Center5
University of Malta6
Delft University of Technology7
University of Stuttgart8
University of Applied Sciences Emden/Leer9
This work presents an investigation on different methods for the calculation of the angle of attack and the underlying induced velocity on wind turbine blades using data obtained from three-dimensional Computational Fluid Dynamics (CFD). Several methods are examined and their advantages, as well as shortcomings, are presented.
The investigations are performed for two 10 MW reference wind turbines under axial inflow conditions, namely the turbines designed in the EU AVATAR and INNWIND.EU projects. The results show that the evaluated methods are in good agreement with each other at the mid-span, though some deviations are observed at the root and tip regions of the blades.
This indicates that CFD results can be used for the calibration of induction modeling for Blade Element Momentum (BEM) tools. Moreover, using any of the proposed methods, it is possible to obtain airfoil characteristics for lift and drag coefficients as a function of the angle of attack.
Language: | English |
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Year: | 2018 |
Pages: | 866-876 |
ISSN: | 18790682 and 09601481 |
Types: | Preprint article and Journal article |
DOI: | 10.1016/j.renene.2018.03.018 |
ORCIDs: | 0000-0001-9857-3015 , Shen, Wen Zhong , 0000-0001-7628-4183 and Ramos García, Néstor |
10 MW wind turbine Angle of Attack (AoA) Axial induction factor Blade element momentum method (BEM) Computational Fluid Dynamics (CFD) Engineering models