航空工程进展Issue(3)：289-295,7.
扑翼非定常气动特性的实验研究
Experimental Research on Unsteady Aerodynamics for Flapping-wing
摘要
Abstract
The dynamic feature makes flapping-wing much different from fixed-wing .In order to study the un-steady aerodynamics of flapping-wing ,a flapping-wing wind tunnel experimental system based on virtual instru-ment is set up ,which can perform real-time measurement of aerodynamic force ,flapping angle ,power con-sumption and so on .The Strouhal number (St) is regarded as a key issue of unsteady aerodynamics .A series of wind tunnel experiments ,based on the definition of St ,are carried out to explore the influence of the St ,which is varied by different flapping amplitude ,flapping frequency and wind velocity .The lift ,thrust and propulsion efficiency of the flapping-wing in different conditions are analyzed ,and the influence rule of St on aerodynamic characteristics for flapping-wing is got .The experiment results show that ,as St increases ,the aerodynamic force of flapping-wing increases significantly ;and the propulsion efficiency keeps in a high level when St is in a certain range .关键词
扑翼/风洞实验/非定常气动特性/斯特劳哈尔数/推进效率Key words
flapping-wing/wind-tunnel experiment/unsteady aerodynamic/Strouhal number/propulsion effi-ciency分类
航空航天引用本文复制引用
付鹏,宋笔锋,王利光,李洋..扑翼非定常气动特性的实验研究[J].航空工程进展,2014,(3):289-295,7.基金项目
总装备部气动预研研究项目 （）
