The evolution of a circular vortex ring with a density 1.5 times of the ambient fluid under gravity was investigated. Three distinct patterns, namely, laminar, wavy, and turbulent, were observed. It is found that approximately as Nre > 2000, the vortex becomes turbulent, as Nre < 1500, laminar but to disintegrate into subrings. The stability curve was determined.

Issue Section:
Research Papers
Topics:
Density, Flow (Dynamics), Gravity (Force), Vortices, Turbulence, Fluids, Stability
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Copyright © 1972
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