Families Of Translating Neutral Vortex Street Configurations
Translating point vortex street configurations model asymptotic states of wakes in a two-dimensional fluid. In this paper such configurations are found with the aid of a multilinear differential equation analogous to the one used in the non-periodic case. Arrangements of point vortex streets with circulations +1/-1 or +1/-2, arbitrary translation velocity and arbitrary numbers of vortex streets (consistent with zero total circulation) are found; the polynomials describing these arrangements have free complex parameters and hence describe a continuum or family of translating states. A similar family with three circulation values is also exhibited.
KeywordsVortex street vortex wake vortex dynamics
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