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RESEARCH PAPERS

Flow Patterns of a Circular Vortex Ring With Density Difference Under Gravity

[+] Author and Article Information
C.-J. Chen, L.-M. Chang

Department of Mechanical Engineering, The University of Iowa, Iowa City, Iowa

J. Appl. Mech 39(4), 869-872 (Dec 01, 1972) (4 pages) doi:10.1115/1.3422883 History: Received April 07, 1971; Online July 12, 2010

Abstract

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.

Copyright © 1972 by ASME
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