Investigation of noninertial cavitation produced by an ultrasonic horn


Birkin, Peter R., Offin, Douglas G., Vian, Christopher J.B., Leighton, T.G. and Maksimov, Alexey O. (2011) Investigation of noninertial cavitation produced by an ultrasonic horn Journal of the Acoustical Society of America, 130, (5), pp. 3297-3308. (doi:10.1121/1.3650537).

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Description/Abstract

This paper reports on noninertial cavitation that occurs beyond the zone close to the horn tip to which the inertial cavitation is confined. The noninertial cavitation is characterized by collating the data from a range of measurements of bubbles trapped on a solid surface in this noninertial zone. Specifically, the electrochemical measurement of mass transfer to an electrode is compared with high-speed video of the bubble oscillation. This gas bubble is shown to be a “noninertial” event by electrochemical surface erosion measurements and “ring-down” experiments showing the activity and motion of the bubble as the sound excitation was terminated. These measurements enable characterization of the complex environment produced below an operating ultrasonic horn outside of the region where inertial collapse can be detected. The extent to which solid boundaries in the liquid cause the frequencies and shapes of oscillatory modes on the bubble wall to differ from their free field values is discussed.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1121/1.3650537
ISSNs: 0001-4966 (print)
Related URLs:
Subjects:
Organisations: Acoustics Group
ePrint ID: 337484
Date :
Date Event
September 2011Published
Date Deposited: 25 Apr 2012 16:26
Last Modified: 17 Apr 2017 17:16
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/337484

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