垂直轴风轮机叶片气动特性模拟与分析

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With the help of the software of Gambit, a two-dimensional flow model for a small H-type vertical axis wind turbine is established; and the airfoil surface is NACA4412. On the basis of the continuity equation, Navier-Stokes（N-S） equations and k-ε model, with adopting the computational model of multiple reference frames, the force and velocity distributions of the aerofoil sections in the flow field are simulated by using Fluent; and the aerodynamic characteristics of the wind turbineare are gained when the attack angle is 20°.利用Gambit前处理软件，建立了翼型面为NACA4412的小型H型垂直轴风力发电机叶片的二维流场模型．在连续性方程、N-S方程及k-ε模型的基础上，采用了多重坐标系（MRF）计算模型，利用Fluent软件模拟了流场内翼型截面的受力和速度分布情况，得到了攻角为20。时NACA4412翼型风机的空气动力学特性．