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arXiv · 0806.4062

Dynamics of Vortex Pair in Radial Flow

Elena Yu. Bannikova·Victor M. Kontorovich·Gregory M. Reznik
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Abstract

The problem of vortex pair motion in two-dimensional plane radial flow is solved. Under certain conditions for flow parameters, the vortex pair can reverse its motion within a bounded region. The vortex-pair translational velocity decreases or increases after passing through the source/sink region, depending on whether the flow is diverging or converging, respectively. The rotational motion of two corotating vortexes in a quiescent environment transforms into motion along a logarithmic spiral in the presence of radial flow. The problem may have applications in astrophysics and geophysics.

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Elena Yu. Bannikova, Victor M. Kontorovich, Gregory M. Reznik. 2008-06-25. Dynamics of Vortex Pair in Radial Flow. https://doi.org/10.1134/s1063776107090105

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