采用FLUENT数值计算方法模拟了NACA4412、NACA4418、FX60-126和NREL-S809四种常用风力机翼型和单位长度平板叶片以及单位长度实际叶片.通过数值计算所得4种翼型的升阻力系数曲线与实验数据的对比,验证了计算模型和计算方法的准确性,在此基础上分析了翼型和平板叶片随攻角变化的流场分布规律以及实际叶片的三维气动特性,数值模拟结果显示三维平板叶片在失速攻角附近气流展向流动较明显,三维实际叶片旋转时气流展向流动产生了三维涡体,更准确地反映了实际叶片的气动特性. The FLUENT numerical simulation method is used to simulate the four common wind turbine airfoils and unit length flat blades of NACA4412, NACA4418, FX60-126 and NREL-S809 and the actual blade length per unit.The numerical results of the drag coefficient curves of the four airfoils The comparison of the experimental data shows the accuracy of the calculation model and the calculation method. Based on the analysis, the flow field distribution along the angle of attack and the three-dimensional aerodynamic characteristics of the blade are analyzed. The numerical simulation results show that the three- The flow around the angle of attack is more obvious than the angle of attack, and the three-dimensional vortex flow is generated when the three-dimensional actual blades rotate, which can more accurately reflect the aerodynamic characteristics of the actual blades.