摘要
为了研究不同结冰条件对风力机叶片翼型气动特性的影响,本文采用计算流体力学中的有限体积法,对不同结冰类型、不同结冰时间以及不同结冰位置三种结冰情况下的扑动翼型的气动力进行了系统的计算分析;通过与非结冰的干净翼型相对比,分析了在不同结冰情况下翼型的气动力以及周围流场的变化差异.此外,本文还研究了在相同结冰情况下由于翼型的基本形状变化所引起的气动力特性的差异.结果表明,结明冰要比结霜冰对翼型的气动性能影响更大.在扑动状态下,非对称翼型比对称翼型更容易受到结冰的影响.
In order to investigate the airfoil＇s aerodynamic mechanism under different icing situations, the finite volume is used to calculate the airfoil＇s force coefficients in three icing situations with different icing types, different icing time, and different icing position. The difference of aerodynamic performance between the airfoil with ice and without ice is investigated by comparing the force coefficients, lift-to-drag ratios and flow field contour. Also, the aerodynamic mechanism of different airfoil types with the same ice is investigated. The result shows that the airfoil with the glaze ice causes the worse aerodynamic performance than the airfoil with the rime ice. The asymmetrical airfoil is easier to be affected by ice in the flapping situation, as compared with the symmetrical airfoil.
作者
谢凌望
张兴伟
廖智豪
Xie Lingwang;Zhang Xingwei;Liao Zhihao(College of Engineering,Shantou University,Shantou 515063,Guangdong,China)
出处
《汕头大学学报（自然科学版）》
2018年第3期54-61,共8页
Journal of Shantou University：Natural Science Edition
基金
国家自然科学基金资助项目(51405279)
关键词
扑动翼
不同结冰情况
气动特性
flapping airfoil
different icing situations
aerodynamic characteristics
