中文摘要：

在风力机叶片的叶尖上添置小翼，寻求动力放大机理，是非常重要的。本文利用CFD方法，对叶片表面及其附近的压力分布进行了数值模拟。通过对比风力机加V（8．8×8）型小翼和不加小翼时叶片的不同径向和弦向位置的压力变化，结合一定位置的等压截面图等分析，看出添置小翼扩大了叶片正负压力面的压差，找出最有影响的位置区域，为进一步揭示叶尖小翼对风力机动力放大的机理起到积极作用。

英文摘要：

It is important that studying the pressure distribution on the blade and in the adjacent area while searching the power augmentation theory with adding a tip vane to the wind turbine. In this paper, the pressure distribution on the blade and in the adjacent area was simulated by CFD. After calculating the pressure of the different chord wise and span wise point to the blade with the tip Vane-V（8.8×8） and without the tip vane and combining the isobaric section figure of the certain location, it can be seen that the tip vane improve the pressure difference between pressure and suction surface. The most influenced zone is found and these can further display the power augmentation theory of the wind turbine by the tip vane.