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Shock and Vibration
Volume 12 (2005), Issue 3, Pages 217-225
http://dx.doi.org/10.1155/2005/395706

Simulation of the Collapse of an Underwater Explosion Bubble under a Circular Plate

Kit-Keung Kan, James H. Stuhmiller, and Philemon C. Chan

Jaycor, Inc., 3394 Carmel Mountain Road, San Diego, CA 92121, USA

Received 21 November 2000; Revised 6 September 2002

Copyright © 2005 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A two-fluid, computational fluid dynamics study of the phenomena of bubble collapse under a submersed flat plate has been performed. In order to handle the rapidly changing bubble-water interface accurately, second order upwind differencing is used in calculating the advection term. Good agreement with experimental data is obtained for the pressure distribution on the plate. The computational results provide insight into the phenomenology of the jet impact, the formation of a radial hydraulic jump, and the complex interaction of that hydraulic jump with the collapsing toroidal bubble.