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单自由度扑翼模型脱落涡及其升力机制的实验研究

鲍锋 杨琪 何意

鲍锋, 杨琪, 何意. 单自由度扑翼模型脱落涡及其升力机制的实验研究[J]. 航空动力学报, 2014, (5): 1091-1098.
引用本文: 鲍锋, 杨琪, 何意. 单自由度扑翼模型脱落涡及其升力机制的实验研究[J]. 航空动力学报, 2014, (5): 1091-1098.
BAO Feng, YANG Qi, HE Yi. Experimental investigation on shedding vortex and lift mechanism of flapping wing model with single degree of freedom[J]. Journal of Aerospace Power, 2014, (5): 1091-1098.
Citation: BAO Feng, YANG Qi, HE Yi. Experimental investigation on shedding vortex and lift mechanism of flapping wing model with single degree of freedom[J]. Journal of Aerospace Power, 2014, (5): 1091-1098.

单自由度扑翼模型脱落涡及其升力机制的实验研究

详细信息
    作者简介:

    鲍锋(1961- ),男,辽宁营口人,教授,博士,主要研究方向为实验流体力学、飞机尾流控制、流体减阻与流动分离控制.

  • 中图分类号: V211

Experimental investigation on shedding vortex and lift mechanism of flapping wing model with single degree of freedom

  • 摘要: 采用色流实验与particle image velocimetry(PIV)测量相结合的方法,对单自由度扑翼模型所产生的脱落涡进行实验研究,得到以下结论:①在扑翼上扑或下扑的过程中,前后缘处产生连续的牛角形涡环,且脱落涡均存在展向运动.②翼翅表面脱落涡的交替产生,使得翼翅上下表面交替产生不对称分布的压力差.③研究对象产生升力的条件是攻角与来流速度均不为零.④扑翼上扑和下扑过程中,脱落涡环量最大值均出现在单行程的3/5处.⑤脱落涡环量与扑动速度成正比.⑥相比上扑过程,下扑过程中翼翅对流场做功更多,在一个扑动周期内,这多余的能量转换为扑翼升力.

     

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出版历程
  • 收稿日期:  2013-03-10
  • 刊出日期:  2014-05-28

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