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Formation of a Tripolar Vortex in a Stratified Fluid

Abstract

This paper reports on an experimental study of vortices in a stratified fluid. The vortices were generated by two different stirring devices, viz. a rotating sphere and a rotating bent rod. It was found that the vortices created with the rotating sphere are mostly axisymmetric and stable, whereas the vortices produced with the bent rod generally show instabilities, under certain conditions leading to the formation of a tripolar vortex. This report concentrates on this tripolar structure and presents quantitative information about the flow obtained through streak photography of tracer particles.

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hal-01875871 , version 1 (17-09-2018)

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Jan-Bert Flór, Govers W.S.S., Gertjan F. van Heijst, R. van Sluis. Formation of a Tripolar Vortex in a Stratified Fluid. Advances in Turbulence IV, 18, Kluwer Academic Publishers, 1993, ⟨10.1007/BF01082568⟩. ⟨hal-01875871⟩
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