摘要
通过仿雨燕机翼的低速风洞测力实验,分析了以展向弯度变化为表现形式的柔性变形对大展弦比机翼纵向气动特性的影响。实验结果表明,这种柔性变形具有增升减阻的效果,可以增大仿雨燕机翼的最大升阻比,减缓失速,能够显著改善大展弦比机翼的纵向气动特性,对揭示鸟类的飞行机理和微型飞行器的设计具有重要的指导意义。
Force measurement experiment was conducted in a low speed wind tunnel to investigate the effect of the flexibility of common swift＇s wing on the longitudinal aerodynamics of wing with large aspect ratio. The result shows that the change of spanwise camber due to wing＇s flexibility enhances lift and reduces drag, increases the maximum lift-to-drag ratio and delays stall. The wing flexibility could improve the longitudinal aerodynamics of large-aspect-ratio wing, which is significant to birds＇ flight and the design of micro air vehicle.
出处
《实验流体力学》
EI
CAS
CSCD
北大核心
2010年第2期1-4,共4页
Journal of Experiments in Fluid Mechanics
基金
国家杰出青年科学基金资助项目(10425207)
关键词
柔性机翼
雨燕
大展弦比
增升
flexible wing
common swift
large aspect ratio
lift enhancement
作者简介
展京霞（1979-），女，甘肃省靖远县人，工程师。研究方向：空气动力学，飞机设计。通信地址：成都市394信箱1分箱（610041），联系电话：028—85509234，Email：jxzhan@ase．buaa．edu．cn
