Aerodynamic Analysis of Wind Turbines Rotors with High Lift Airfoils by Using Pre-conditioned WENO Scheme

The aerodynamic analysis of wind turbine rotors using preconditioned weighted essentially non-oscillatory scheme to solve the compressible NavierStokes equations in non-inertial coordinate system with Spalart-Allmaras one equation turbulence model is presented. A parallel clustering algorithm based on Message Passing Interface library was implemented. The NREL Phase VI rotor with S809 airfoil was considered as testing configuration and the wind tunnel data from NASA Ames were used to verify the validity and accuracy of present method. The grid refinement test was performed firstly on surface pressure, normal and tangent forces of blade sections and rotor shaft torque. Besides the S809 airfoil, rotors with high lift airfoils DAE21 and FX63100 are also studied to investigate their effects on aerodynamic performance of wind turbine rotors.