New vortex ring translational instability

Kumar, Manoj and Shankar, PN (1995) New vortex ring translational instability. In: 6th Asian Congress of Fluid Mechanics, 22-26 May 1995, Singapore.

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Abstract

We have conducted experiments on drop generated vortex rings in which the translational velocity and the ring diameter have been measured accurately by analyzing the video recording of the ring motion. Our results reveal a hitherto unknown feature of these fields, namely, that the ring translational velocity, under certain conditions oscillates about its nominal value. Here we present data on three fluids and on a piston generated ring which show the new phenomenon

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Rings;Velocity; Impact tests;Video;Accuracy;Stability;Fluid mechanics;Recording;Fluids
Subjects: ENGINEERING > Fluid Mechanics and Thermodynamics
Division/Department: Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division
Depositing User: M/S ICAST NAL
Date Deposited: 25 Sep 2006
Last Modified: 24 May 2010 09:50
URI: http://nal-ir.nal.res.in/id/eprint/2790

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