Magnus前缘旋转圆柱型翼的数值模拟  

Numerical Simulation on The Magnus Leading Edge Rotating Cylinder Airfoil

作　　者：张玲[1] 陈楷欣 高胜强[1] 张立栋[1] ZHANG Ling;CHEN Kai-xin;GAO Sheng-qiang;ZHANG Li-dong(Energy and Power Engineering of Northeast Electic Power University,Jilin 132012,China)

机构地区：[1]东北电力大学能源与动力工程学院,吉林132012

出　　处：《科学技术与工程》2018年第7期252-258,共7页Science Technology and Engineering

基　　金：吉林省自然科学基金(20170101116JC)资助

摘　　要：为探究前缘旋转圆柱对风力机叶片气动性能影响的机理,利用Magnus效应理论,结合传统翼型尾翼,提出新型前缘旋转圆柱组合叶片结构。采用Standard k-ε模型对多种工况进行数值模拟,分析圆柱转速比、前缘与尾缘间间隙、圆柱尺寸三个主要参数对组合翼型的气动性能影响。结果表明:在翼型前缘施加具有Magnus效应的圆柱有助于抑制翼型周边的流体流动分离;并有效地提高翼型的气动性能。提高转速比,导致升力系数大幅上升,阻力系数降低,增升减阻作用显著。减小前缘圆柱与尾部翼型间的间隙为NACA0015前缘旋转圆柱型翼带来更大的气动收益;合理的圆柱尺寸可以优化翼型的气动特性。Numerical simulation was performed to characterize the influence of the leading edge rotating cylinder on aerodynamic performance of wind turbine blades.Based on the Magnus effect theory,the optimized airfoil was proposed.The Standard k-εturbulence model was adopted with various simulation conditions to illustrate the mechanism of how the rotating speed ratio of cylinder,the gap between the cylinder and the fixed airfoil and the size of rotating cylinder affect the aerodynamic performance of wind turbine blades.The results indicate that,the leading edge rotating cylinder improves the aerodynamic performance of wind turbine blades.The high rotating speed ratio can increase lift and decrease drag.The little gap brings greater aerodynamic benefits.Reasonable cylinder dimensions optimize aerodynamic characteristics of airfoils.

关 键 词：前缘旋转圆柱 Magnus效应 风力机叶片 气动性能 数值模拟 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]