3D Modeling Methods of Aerodynamic Shape for Large-Scale Wind Turbine Blades

The optimum design angle of attack for a large-scale wind turbine blade and the lift coefficient assumes the nonlinearities change. For such problem, 1.2 MW wind turbine blade´s profile is designed based on BEM theory through improving on the Wilson algorithm and correcting the airfoil from the structure and processing angle. the calculation for the aerodynamic performance, by the relation curve between tip speed radio and power coefficient, the rationality of improving on the Wilson algorithm and the feasibility of designing aerodynamic shape of large-scale wind turbine blade with horizontal axis is proved , machinable real-made 3D model of wind turbine blades in the example is gotten ultimately.