Title
Evaluation of different methods for determining the angle of attack on wind turbine blades with CFD results under axial inflow conditions
Author
Rahimi, H.
Schepers, J.G.
Shen, W.Z.
Ramos Garcia, N.
Schneider, W.S.
Micallef, D.
Simao Ferreira, C.J.
Jost, E.
Klein, L.
Herraez, I.
Publication year
2018
Abstract
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 10MW 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.
Subject
Energy Efficiency
Energy / Geological Survey Netherlands
Axial Induction factor
Computational Fluid Dynamics (CFD)
Angle of Attack (AoA)
10MW wind
turbine, Blade Element Momentum Method (BEM), Engineering models
To reference this document use:
http://resolver.tudelft.nl/uuid:c9c6c39e-86cc-499a-9ca5-6d13e119235a
TNO identifier
874897
Source
Renewable Energy, 125, 866-876
Document type
article