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A note on the impulse due to a vapour bubble near a boundary

Published online by Cambridge University Press:  17 February 2009

J. R. Blake  and
P. Cerone
J. R. Blake
Affiliation:
Department of Mathematics, University of Wollongong, P. O. Box 1144, Wollongong, N.S.W. 2500
P. Cerone
Affiliation:
Department of Mathematics, University of Wollongong, P. O. Box 1144, Wollongong, N.S.W. 2500
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Abstract

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An expression for the impluse due to a vapour (cavitation) bubble is obtained in terms of an integral over a nearby boundary. Examples for a point source near a free surface, rigid boundary, inertial boundary and a fluid of different density are considered. It appears that the sign of the impluse determines the direction a cavitation bubble will migrate and the direction of the high speed liquid jet during the collapse phase. The theory may explain recent observations on buoyant bubbles near an interface between two fluids of different densities.

Type
Research Article
Information
The ANZIAM Journal , Volume 23 , Issue 4 , April 1982 , pp. 383 - 393
Copyright
Copyright © Australian Mathematical Society 1982

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