An integrated wave-effects model for an underwater explosion bubble

A model for a moderately deep underwater explosion bubble is developed that integrates the shock wave and oscillation phases of the motion. A hyperacoustic relationship is formulated that relates bubble volume acceleration to far-field pressure profile during the shock-wave phase, thereby providing...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America Vol. 111; no. 4; pp. 1584 - 1601
Main Authors: Geers, Thomas L, Hunter, Kendall S
Format: Journal Article
Language:English
Published: United States 01-04-2002
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Summary:A model for a moderately deep underwater explosion bubble is developed that integrates the shock wave and oscillation phases of the motion. A hyperacoustic relationship is formulated that relates bubble volume acceleration to far-field pressure profile during the shock-wave phase, thereby providing initial conditions for the subsequent oscillation phase. For the latter, equations for bubble-surface response are derived that include wave effects in both the external liquid and the internal gas. The equations are then specialized to the case of a spherical bubble, and bubble-surface displacement histories are calculated for dilational and translational motion. Agreement between these histories and experimental data is found to be substantially better than that produced by previous models.
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ISSN:0001-4966
1520-8524
DOI:10.1121/1.1458590