ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Translational velocity oscillations of piston generated vortex rings

Kumar, Manoj and Arakeri, JH and Shankar, PN (1995) Translational velocity oscillations of piston generated vortex rings. In: Physics of Fluids, 7 (11). pp. 2751-2756.

[img] PDF
Translational_velocity_oscillations.pdf - Published Version
Restricted to Registered users only

Download (742Kb) | Request a copy
Official URL: http://pof.aip.org/resource/1/phfle6/v7/i11/p2751_...

Abstract

Experimental results are presented that show that the translational velocities of piston generated vortex rings often undergo oscillations, similar to those recently discovered for drop generated rings. An attempt has been made to minimize uncertainties by utilizing both dye and hydrogen bubbles for visualization and carefully repeating measurements on the same ring and on different realizations under the same nominal piston conditions. The results unambiguously show that under most conditions, both for laminar and turbulent rings and for rings generated from pipes and orifices, the oscillations are present. The present results, together with the earlier results on drop generated rings, give support to the view that translational velocity oscillations are probably an inherent feature of translating vortex ring fields. (C) 1995 American Institute of Physics.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Institute of Physics.
Department/Centre: Others
Date Deposited: 27 May 2011 06:46
Last Modified: 27 May 2011 06:46
URI: http://eprints.iisc.ernet.in/id/eprint/37985

Actions (login required)

View Item View Item