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Studies of non-linear bubble oscillations in a simulated acoustic field

Studies of non-linear bubble oscillations in a simulated acoustic field
Studies of non-linear bubble oscillations in a simulated acoustic field
Gas bubbles in liquids are capable of forced oscillations in a sound field Photographic study of these non-linear oscillations is difficult. It is technically most feasible at low acoustic frequencies, where lower framing rates are required, and where the resonance bubble size is larger. However, the acoustic pressures required to elicit a non-linear response from the bubble might, if generated at audible frequencies, be damaging to the hearing. This paper outlines an experimental solution to the problem, whereby a volume of liquid containing bubbles is vibrated vertically The oscillating pressure in the water mimics an acoustic field at the vibration frequency and the bubble responds to it as such The apparatus has minimal audible emissions, yet the oscillating pressure is of such an amplitude as to generate highly non-linear oscillations in the bubble. The experiment provides a good example of forced oscillation, as well as illustrating a subtle solution to a difficult experimental problem Radius-time data from a given bubble were obtained using high-speed and stroboscopic photography, and were compared with the numerical predictions obtained from the Rayleigh-Plesset equation
0143-0807
352-358
Leighton, T.G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Wilkinson, M.
e0c80b8e-48d4-4dc7-b9a7-7d2c339555e4
Walton, A.J.
2ac47979-cc42-4acd-9828-ead8a7897e85
Field, J.E.
5698517c-4404-4bae-9f02-e43cc4b1b7fa
Leighton, T.G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Wilkinson, M.
e0c80b8e-48d4-4dc7-b9a7-7d2c339555e4
Walton, A.J.
2ac47979-cc42-4acd-9828-ead8a7897e85
Field, J.E.
5698517c-4404-4bae-9f02-e43cc4b1b7fa

Leighton, T.G., Wilkinson, M., Walton, A.J. and Field, J.E. (1990) Studies of non-linear bubble oscillations in a simulated acoustic field. European Journal of Physics, 11 (6), 352-358. (doi:10.1088/0143-0807/11/6/007).

Record type: Article

Abstract

Gas bubbles in liquids are capable of forced oscillations in a sound field Photographic study of these non-linear oscillations is difficult. It is technically most feasible at low acoustic frequencies, where lower framing rates are required, and where the resonance bubble size is larger. However, the acoustic pressures required to elicit a non-linear response from the bubble might, if generated at audible frequencies, be damaging to the hearing. This paper outlines an experimental solution to the problem, whereby a volume of liquid containing bubbles is vibrated vertically The oscillating pressure in the water mimics an acoustic field at the vibration frequency and the bubble responds to it as such The apparatus has minimal audible emissions, yet the oscillating pressure is of such an amplitude as to generate highly non-linear oscillations in the bubble. The experiment provides a good example of forced oscillation, as well as illustrating a subtle solution to a difficult experimental problem Radius-time data from a given bubble were obtained using high-speed and stroboscopic photography, and were compared with the numerical predictions obtained from the Rayleigh-Plesset equation

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Published date: 1990
Organisations: Acoustics Group

Identifiers

Local EPrints ID: 349518
URI: https://eprints.soton.ac.uk/id/eprint/349518
ISSN: 0143-0807
PURE UUID: 2396d347-a6a0-4216-a6bb-d1080814d545
ORCID for T.G. Leighton: ORCID iD orcid.org/0000-0002-1649-8750

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Date deposited: 06 Mar 2013 15:27
Last modified: 06 Jun 2018 13:08

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Contributors

Author: T.G. Leighton ORCID iD
Author: M. Wilkinson
Author: A.J. Walton
Author: J.E. Field

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