风力机叶片三维气动特性分析

Performance Analysis of 3D Aerodynamics for Wind Turbine Blade

应用FLUENT软件,采用三维计算流体动力学(CFD)方法对水平轴风力机叶片进行三维气动分析,得到不同风速下的功率曲线、各截面的压力分布图和叶片三维压力分布图,并与叶素动量理论(BEM)计算结果进行对比。结果表明大功率风力机叶片气动性能计算采用三维CFD理论更能反映叶片的实际工作情况。

By FLUENT software,the aerodynamics performance of blade was analyzed by 3D computational fluid dynamics （CFD） method for the horizontal axis wind turbine. The power curves in different wind velocity ,the pressure distribution maps of the different sections and the 3D pressure distribution maps were obtained,and has compared with the results of the blade element momentum （BEM） theory. The 3D CFD method is better to simulate the actual performance for the lager power wind turbine blade.