翼型凹变在风电叶片气动性能优化中的应用研究

Applied research on airfoil concave in aerodynamic performance optimization of wind turbine blades

风电产业的发展已进入关键瓶颈期,叶面流动分离控制技术的开发已成为产业发展中亟待攻克的重要课题。文章提出了在叶片吸力面靠近流动分离处实施翼型结构向翼面内侧凹曲的结构优化方式,通过凹变参数的合理选择实现了叶面流动分离的有益控制和叶片气动性能的有效提升,为叶面流动分离控制提供了新的分析思路和解决方案。

The development of wind power industry has entered a critical bottleneck period,and the development of blade flow separation control technology has become an important subject to be urgently overcome in the development of the industry.In this project,concave deformations of airfoils towards the inside of the airfoil were carried out at the suction surface of blades where flow separations are prone to occur,so as to effectively control the flow separations on the blade surface and improve its output power.It was found that the above goals can be achieved through the reasonable selection of concave parameters.The results can provide new analysis ideas and solutions for blade flow separation control.