空气动力学学报2011，Vol.29Issue(1)：32-38,7.
微型扑翼低雷诺数绕流气动特性研究
Aerodynamic performance research of micro flapping- wing in low Reynolds number flow
摘要
Abstract
The aerodynamic performance of micro flapping - wing in low Reynolds number flow is researched by numerical simulation.The numerical method is solving preconditioned Reynolds -averaged Navier- Stokes equations based on structured chimera grid method.The spatial discretization is cell centered finite volume method.The dual time method is used in unsteady iteration.The validity of code is verified by good accordance between experiment resuits of reference and calculated results of this paper.The key parameters, including angle of attack, pitching angle,plunging angle, and reduced frequency are researched.Then the folding flapping mode is researched.The results show that the angle of attack, pitching angle and flapping mode affect the lift very much, but the pitching angle and reduced frequency affect the thrust a lot.Special designed flapping motion can improve the aerodynamic performance of flapping wing.The research of this paper is helpful to understand the mechanism of flapping flight and useful tn design flapping wing micro air vehicles.关键词
扑翼/低雷诺数/扭转角/挥舞角/减缩频率/扑动折叠Key words
flapping wing/ low Reynolds number/ pitching angle/ plunging angle/ reduced frequency/ folding flapping分类
航空航天引用本文复制引用
杨文青,宋笔锋,宋文萍,李占科..微型扑翼低雷诺数绕流气动特性研究[J].空气动力学学报,2011,29(1):32-38,7.基金项目
国家自然基金项目(10802066). （10802066）
