Aerodynamic Loads on Horizonal Axis Wind Turbine Rotors Exerted by Various Inflow Conditions

Abstract

Horizontal Axis Wind Turbines (HAWT) are installed under the natural wind conditions, and they suffer complicated aerodynamic loads on the rotor blades due to turbulence, yawed inflow, and wind shear. This paper describes the results for such complicated loads on the rotor blade obtained by using a numerical method, which is composed of a load calculation model and a turblent wind field model. The former adopts an inviscid model based on the asymptotic acceleration potential method. The turbulent wind field is simulated with Veers model, based on a Fourier synthesis method.