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The mechanism of bubble detachment from a wall at zero and negative gravity

Published online by Cambridge University Press:  11 April 2006

G. Malcotsis
G. Malcotsis
Affiliation:
Engineering Department, University of Cambridge
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Abstract

An experiment has been carried out in which air bubbles were caused to grow isothermally at a vertical wall between two closely spaced horizontal plates. The experiment gives an approximate representation in two dimensions for the growth of a vapour bubble at a wall under some conditions of subcooled boiling in zero gravity. Although the effect of gravity was virtually eliminated in the experiment, it was found that a bubble could still detach itself from the wall, apparently owing to the effects of surface tension and inertia.

Also, bubbles were seen to detach from a wall despite the presence of a slight gravity force directed to oppose such detachment.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 77 , Issue 2 , 24 September 1976 , pp. 313 - 320
Copyright
© 1976 Cambridge University Press

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