Extraction of the wake induction and angle of attack on rotating wind turbine blades from PIV and CFD results

摘要

The analysis of wind turbine aerodynamics requires accurate information aboutthe axial and tangential wake induction as well as the local angle of attackalong the blades. In this work we present a new method for obtaining themconveniently from the velocity field. We apply the method to the New Mexicoparticle image velocimetry (PIV) data set and to computational fluid dynamics (CFD) simulations of the same turbine. This allowsthecomparison of experimental and numerical results of the mentioned quantities ona rotating wind turbine. The presented results open up new possibilities forthe validation of numerical rotor models.