© 2003 by Oxford University Press
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Extinction Behaviour of Contracting Bubbles in Porous Media
( 1 Division of Applied Mathematics, School of Mathematical Sciences, University of Nottingham, Nottingham NG7 2RD )
This paper is concerned with bubble contraction in porous media otherwise filled with viscous fluid. We suppose that an external pressure is applied to the (fixed) boundary of a porous medium, forcing a bubble to contract towards a point. By using the Baiocchi transform, we are able to give a rather complete asymptotic description of the process at times just before the bubble vanishes. The application of time-reversal to the results leads to implications for bubble nucleation.
Received 30 January 2002. Revised 10 February 2003.