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科技导报  2015 

基于涡面元法的风力机叶片翼型优化设计

DOI: 10.3981/j.issn.1000-7857.2015.04.013, PP. 76-79

Keywords: 风力机翼型,涡面元法,翼型优化

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Abstract:

针对风力机翼型反设计问题,通过求解由涡量表达的面元流函数方程,直接得到面元节点速度;通过计算沿流线的伯努利方程获得面元的压力系数,进而求得升力系数和力矩系数。应用所述涡面元法以NACA2412为初始翼型,以NACA4412压力系数为目标值,获得满足目标压力系数的新翼型。根据新翼型对一小型风力机进行优化设计。计算表明基于涡面元法的翼型反设计有较高精度,较广适应性。通过凸函数表达翼型几何参数,能满足不同初始翼型的优化设计及风力机叶片的设计要求。

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