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Vortex sheet : ウィキペディア英語版 | Vortex sheet
A vortex sheet is a term used in fluid mechanics for a surface across which there is a discontinuity in fluid velocity, such as in slippage of one layer of fluid over another.〔(McGraw-Hill Dictionary of Scientific and Technical Terms ) Retrieved July 2012〕 While the tangential components of the flow velocity are discontinuous across the vortex sheet, the normal component of the flow velocity is continuous. The discontinuity in the tangential velocity means that the flow has infinite vorticity on a vortex sheet. At high Reynolds numbers, vortex sheets tend to be unstable. In particular, they may exhibit Kelvin–Helmholtz instability. ==See also==
* Vortex ring
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Vortex sheet」の詳細全文を読む
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