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An inviscid model for the vortex-street wake

Saffman, P. G. and Schatzman, J. C. (1982) An inviscid model for the vortex-street wake. Journal of Fluid Mechanics, 122 . pp. 467-486. ISSN 0022-1120. doi:10.1017/S0022112082002316.

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An inviscid model for the Karman vortex street, containing vortices of uniform vorticity surrounded by irrotational fluid, is related to the wake behind a bluff body by a global analysis requiring the conservation of momentum, energy and vorticity. Some comparison is made with experimental results reported in the literature. A qualitative procedure is proposed whereby the slow evolution of the wake through viscous effects is approximated. Some comments are made regarding the relevance of the stability properties of the inviscid street. Some calculations are made for the ‘secondary vortex street’ that is observed after breakdown and rearrangement, and comparison is made with experiment.

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Additional Information:© 1982 Cambridge University Press. Reprinted with permission. (Received 13 August 1981 and in revised form 21 December 1981) This work was supported by the Department of Energy (Office of Basic Energy Sciences). We acknowledge with gratitude the granting of time by Control Data Corporation on the Cyber 203 computer a t the CDC Service Center, Arden Hills, Minnesota.
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ID Code:10123
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Deposited On:14 Apr 2008
Last Modified:08 Nov 2021 21:05

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