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Some experiments on the motion of an isolated laminar thermal

Published online by Cambridge University Press:  29 March 2006

D. J. Shlien  and
D. W. Thompson
D. J. Shlien
Affiliation:
Department of Chemical Engineering, University of British Columbia, Vancouver Present address: School of Engineering, Tel-Aviv University, Israel.
D. W. Thompson
Affiliation:
Department of Chemical Engineering, University of British Columbia, Vancouver
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Abstract

A novel technique for injecting buoyancy (heat) into a liquid is described and demonstrated. When buoyancy was injected for a short time a laminar vortex ring formed. Its vertical displacement was found to be only approximately proportional to the square root of time (measured from an apparent initial time). Approximate geometrical similarity was also observed although the Reynolds number decreased from 28 to about 14.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 72 , Issue 1 , 11 November 1975 , pp. 35 - 47
Copyright
© 1975 Cambridge University Press

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