Numerical Simulation of Aerodynamic Performance for Wind Turbine Blades

The aerodynamic performance of 750 kW wind turbine blades was simulated and analyzed using FLUENT software in the rated wind speed and 12 unrated wind speed working conditions.The stress of the impeller,twisting moment,power of output shaft and wind energy efficiency were calculated.Power curve was drawn,and it was compared with the measured power curve to verify reliability of the wind turbine aerodynamic performance simulation and rationality of blade modeling.The flow pattern figures about pressure distribution,velocity distribution,turbulence intensity and velocity vector were observed,and the blade simulation results were analyzed.So the quality of the designed wind turbine blade can be confirmed,and it provides technical parameters and guidance for wind turbine blade design and modifications.