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Stability of relative equilibria of three vortices
(American Institute of Physics, 2009-09-01)
Three point vortices on the unbounded plane have relative equilibria wherein the vortices either form an equilateral triangle or are collinear. While the stability analysis of the equilateral triangle configurations is ...
Chaotic scattering of two identical point vortex pairs revisited
(American Institute of Physics, 2008-09-01)
A new numerical exploration suggests that the motion of two vortex pairs, with constituent vortices all of the same absolute circulation, displays chaotic scattering regimes. The mechanisms leading to chaotic scattering ...