Aerodynamic Analysis And Optimization Of Wind Turbine Blade

With the development of society, human overuse traditional energy sources,causing energy shortages, environmental pollution and ecological imbalance andother issues, energy problem has become urgent problems of human. Against thisbackground, as a clean new energy, wind energy appears in people’s vision,development and utilization of wind energy get people’s attention.Wind turbine blade is an extremely important part and the product design ofthe wind turbine foundation; it has a great impact on the entire wind turbinesystem. This topic analyzes and optimizes the aerodynamic performancehorizontal axis wind turbine blade.This topic builds a physical model selecting three kinds of airfoils, buildstwo-dimensional flow field by using structured quadrilateral mesh and selectingthe pressure far-field. Simulation data is consistent with the known according tothe numerical simulation. The feasibility is verified according to the numericalsimulation, and the results provide a theoretical basis for the airfoil optimization.Using multi-island genetic algorithm as a optimization algorithm. thistopic establishes the optimization process based on iSIGHT platform, designairfoil parameterized module, meshing module, airfoil analysis module,optimization module based on multi-island genetic algorithm and CLOSEmodule. This topic gets new airfoils which aerodynamic performances are betterthan initial airfoils by using airfoil optimization method.This topic creates models of the blades based on the initial airfoil s and theoptimized airfoils, and compares aerodynamic characteristics of the blades. Twoblades are analyzed and compared in dimensional flow field.The research results have a certain theoretical significance in airfoilaerodynamic optimization and aerodynamic analysis of wind turbine blades, andare valuable for the engineering application.