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A candidate mechanism for exciting sound during bubble coalescence

Czerski, Helen (2011) A candidate mechanism for exciting sound during bubble coalescence Journal of the Acoustical Society of America, 129, (3), EL83-EL88. (doi:10.1121/1.3553175).

Record type: Article

Abstract

Coalescing bubbles are known to produce a pulse of sound
at the moment of coalescence, but the mechanism driving the sound production is uncertain. A candidate mechanism for the acoustic forcing is the rapid increase in the bubble volume, as the neck of air joining the two parent bubbles expands. A simple model is presented here for the volume forcing caused by the coalescence dynamics, and its predictions are tested against the available data. The model predicts the right order of magnitude for the acoustic amplitude, and the predicted amplitudes also scale correctly with the radius of the smaller parent bubble.

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Published date: 4 March 2011

Identifiers

Local EPrints ID: 182379
URI: http://eprints.soton.ac.uk/id/eprint/182379
ISSN: 0001-4966
PURE UUID: 8a9e3f48-68de-4588-9e5e-0961e022bfe5

Catalogue record

Date deposited: 28 Apr 2011 08:53
Last modified: 18 Jul 2017 11:57

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