Falling cards and flapping flags: understanding fluid–solid interactions using an unsteady point vortex model
Falling cards and flapping flags: understanding fluid–solid interactions using an unsteady point vortex model
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DOI：
10.1007/s00162-009-0117-6
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发表时间：
2010-03
影响因子：
3.4
通讯作者：
S. Michelin;Stefan G. Llewellyn Smith
中科院分区：
文献类型：
--
作者：
S. Michelin;Stefan G. Llewellyn Smith
本文提出了一个用于高雷诺数流动和锐缘固体相互作用的二维降阶模型，该模型基于固体尾迹的非定常强度的点涡的无粘表示。该模型被应用到一个刚性卡在流体中的下降和由平行流迫使柔性膜的扑动不稳定性。
A reduced-order model for the two-dimensional interaction of a sharp-edged solid body and a high-Reynolds number flow is presented, based on the inviscid representation of the solid’s wake as point vortices with unsteady intensity. This model is applied to the fall of a rigid card in a fluid and to the flapping instability of a flexible membrane forced by a parallel flow.