Directed jetting from collapsing cavities exposed to focused ultrasound
Directed jetting from collapsing cavities exposed to focused ultrasound
We demonstrate directed jetting from pulsed laser-induced cavities subjected to a burst of focused ultrasound. Alignment of the ultrasound focus and the pressure amplitudes in the vicinity of the cavity dictate the direction and length of the resulting jet, respectively. We interpret our observations in terms of radiation forces exerted on the cavity, due to the pressure gradient introduced to the ultrasound focus by its presence. We support our hypothesis with a linear analysis of the force distribution across the cavity surface, at the moment of maximum inflation, which shows reasonable predictive agreement with the observed jet characteristics.
cavitation, jets, surface acoustic waves, ultrasonic focusing
024104-[3pp]
Gerold, B.
eb14de36-455e-490b-828f-2ffa6529ecc2
Glynne-Jones, P.
6ca3fcbc-14db-4af9-83e2-cf7c8b91ef0d
McDougall, C.
88e88afe-f877-4d43-8c3e-156e669f6e6e
McGloin, D.
5dcc3dc8-874a-4f48-a62c-c7400cd7c9bd
Cochran, S.
919f7ad1-7035-4778-8124-5aef3ad5346c
Melzer, A.
b8303211-0052-4fe7-895a-2374be730423
Prentice, P.
19b0ce56-fdb0-4f84-9e12-b794515d31d5
9 January 2012
Gerold, B.
eb14de36-455e-490b-828f-2ffa6529ecc2
Glynne-Jones, P.
6ca3fcbc-14db-4af9-83e2-cf7c8b91ef0d
McDougall, C.
88e88afe-f877-4d43-8c3e-156e669f6e6e
McGloin, D.
5dcc3dc8-874a-4f48-a62c-c7400cd7c9bd
Cochran, S.
919f7ad1-7035-4778-8124-5aef3ad5346c
Melzer, A.
b8303211-0052-4fe7-895a-2374be730423
Prentice, P.
19b0ce56-fdb0-4f84-9e12-b794515d31d5
Gerold, B., Glynne-Jones, P., McDougall, C., McGloin, D., Cochran, S., Melzer, A. and Prentice, P.
(2012)
Directed jetting from collapsing cavities exposed to focused ultrasound.
Applied Physics Letters, 100 (2), .
(doi:10.1063/1.3676414).
Abstract
We demonstrate directed jetting from pulsed laser-induced cavities subjected to a burst of focused ultrasound. Alignment of the ultrasound focus and the pressure amplitudes in the vicinity of the cavity dictate the direction and length of the resulting jet, respectively. We interpret our observations in terms of radiation forces exerted on the cavity, due to the pressure gradient introduced to the ultrasound focus by its presence. We support our hypothesis with a linear analysis of the force distribution across the cavity surface, at the moment of maximum inflation, which shows reasonable predictive agreement with the observed jet characteristics.
Other
GetPDFServlet?filetype=pdf&id=APPLAB000100000002024104000001&idtype=cvips&doi=10.1063%2F1.3676414&prog=normal
- Other
Restricted to Repository staff only
Request a copy
More information
Published date: 9 January 2012
Keywords:
cavitation, jets, surface acoustic waves, ultrasonic focusing
Organisations:
Mechatronics
Identifiers
Local EPrints ID: 343249
URI: http://eprints.soton.ac.uk/id/eprint/343249
ISSN: 0003-6951
PURE UUID: 671b7fb5-afa0-48af-becd-a19bcb7b53e3
Catalogue record
Date deposited: 01 Oct 2012 12:01
Last modified: 15 Mar 2024 03:03
Export record
Altmetrics
Contributors
Author:
B. Gerold
Author:
C. McDougall
Author:
D. McGloin
Author:
S. Cochran
Author:
A. Melzer
Author:
P. Prentice
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
