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A mechanism stimulating sound production from air bubbles released from a nozzle

Deane, GB; Czerski, H; (2008) A mechanism stimulating sound production from air bubbles released from a nozzle. The Journal of the Acoustical Society of America , 123 (6) , Article EL12. 10.1121/1.2908198. Green open access

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Abstract

Gas bubbles in water act as oscillators with a natural frequency inversely proportional to their radius and a quality factor determined by thermal, radiation, and viscous losses. The linear dynamics of spherical bubbles are well understood, but the excitation mechanism leading to sound production at the moment of bubble creation has been the subject of speculation. Experiments and models presented here show that sound from bubbles released from a nozzle can be excited by the rapid decrease in volume accompanying the collapse of the neck of gas which joins the bubble to its parent.

Type: Article
Title: A mechanism stimulating sound production from air bubbles released from a nozzle
Open access status: An open access version is available from UCL Discovery
DOI: 10.1121/1.2908198
Publisher version: http://dx.doi.org/10.1121/1.2908198
Language: English
Additional information: Copyright 2008 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in Deane, GB; Czerski, H; (2008) A mechanism stimulating sound production from air bubbles released from a nozzle. The Journal of the Acoustical Society of America , 123 (6) , Article EL12 and may be found at http://dx.doi.org/10.1121/1.2908198
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/1426200
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