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Multiple observations of cavitation cluster dynamics close to an ultrasonic horn tip

Multiple observations of cavitation cluster dynamics close to an ultrasonic horn tip
Multiple observations of cavitation cluster dynamics close to an ultrasonic horn tip
Bubble dynamics in water close to the tip of an ultrasonic horn (?23 kHz, 3 mm diameter) have been studied using electrochemistry, luminescence, acoustics, light scattering, and high-speed imaging. It is found that, under the conditions employed, a large bubble cluster (?1.5 mm radius) exists at the tip of the horn. This cluster collapses periodically every three to four cycles of the fundamental frequency of the horn. Following the collapse of the cluster, a short-lived cloud of small bubbles (each tens of microns in diameter) was observed in the solution. Large amplitude pressure emissions are also recorded, which correlate temporally with the cluster collapse. Bursts of surface erosion (measured in real time using an electrochemical technique) and multibubble sonoluminescence emission both also occur at a subharmonic of the fundamental frequency of the horn and are temporally correlated with the bubble cluster collapse and the associated pressure wave emission.
0001-4966
3379-3388
Birkin, Peter R.
ba466560-f27c-418d-89fc-67ea4f81d0a7
Offin, Douglas G.
e7cbc36d-c3ae-431b-9f7a-8c38ccb53579
Vian, Christopher J.B.
c5ca4c67-5a34-475e-b99b-04593f9c6cc9
Leighton, T.G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Birkin, Peter R.
ba466560-f27c-418d-89fc-67ea4f81d0a7
Offin, Douglas G.
e7cbc36d-c3ae-431b-9f7a-8c38ccb53579
Vian, Christopher J.B.
c5ca4c67-5a34-475e-b99b-04593f9c6cc9
Leighton, T.G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae

Birkin, Peter R., Offin, Douglas G., Vian, Christopher J.B. and Leighton, T.G. (2011) Multiple observations of cavitation cluster dynamics close to an ultrasonic horn tip. Journal of the Acoustical Society of America, 130 (5), 3379-3388. (doi:10.1121/1.3650536).

Record type: Article

Abstract

Bubble dynamics in water close to the tip of an ultrasonic horn (?23 kHz, 3 mm diameter) have been studied using electrochemistry, luminescence, acoustics, light scattering, and high-speed imaging. It is found that, under the conditions employed, a large bubble cluster (?1.5 mm radius) exists at the tip of the horn. This cluster collapses periodically every three to four cycles of the fundamental frequency of the horn. Following the collapse of the cluster, a short-lived cloud of small bubbles (each tens of microns in diameter) was observed in the solution. Large amplitude pressure emissions are also recorded, which correlate temporally with the cluster collapse. Bursts of surface erosion (measured in real time using an electrochemical technique) and multibubble sonoluminescence emission both also occur at a subharmonic of the fundamental frequency of the horn and are temporally correlated with the bubble cluster collapse and the associated pressure wave emission.

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Published date: September 2011
Organisations: Acoustics Group

Identifiers

Local EPrints ID: 203937
URI: https://eprints.soton.ac.uk/id/eprint/203937
ISSN: 0001-4966
PURE UUID: 62b91eaa-e59f-4d9b-9126-5a422e428863
ORCID for Peter R. Birkin: ORCID iD orcid.org/0000-0002-6656-4074
ORCID for T.G. Leighton: ORCID iD orcid.org/0000-0002-1649-8750

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Date deposited: 22 Nov 2011 14:38
Last modified: 14 Jul 2018 00:36

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Contributors

Author: Peter R. Birkin ORCID iD
Author: Douglas G. Offin
Author: Christopher J.B. Vian
Author: T.G. Leighton ORCID iD

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