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Influence of the accommodation coefficient on nonlinear bubble oscillations

Fuster, Daniel and Hauke, Guillermo and Dopazo, Cesar (2010) Influence of the accommodation coefficient on nonlinear bubble oscillations. Journal of the Acoustical Society of America, 128 (1). pp. 5-10. ISSN 0001-4966.

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This paper numerically investigates the effect of mass transfer processes on spherical single bubble dynamics using the Hertz–Langmuir–Knudsen approximation for the mass flux across the interface. Bubble behavior, with and without mass transfer, is studied for different values of pressure wave amplitude and frequency, as well as initial bubble radius. Whereas mass transfer processes do not seem to play a significant role on the bubble response for pressure amplitudes smaller than 0.9 atm, they appear to have an important effect when the amplitude is greater than or equal to 1 atm. For the later case, where the minimum liquid pressure reaches values around its vapor pressure, the importance of mass transfer depends on frequency. For frequencies in the 10^3–10^5 Hz range and initial bubble radii of the order of tens of microns, bubble implosions with and with no mass transfer are significantly different; smaller radii display a lower sensitivity. In this regime, accurate model predictions must, therefore, carefully select the correct value of the accommodation coefficient. For frequencies greater than 10^5 Hz, as a first approximation mass transfer can be ignored.

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Additional Information:© 2010 Acoustical Society of America. Received 22 July 2009; revised 15 April 2010; accepted 15 April 2010. The authors would like to acknowledge the comments and suggestions of Dr. Jean-Louis Thomas on a previous version of this manuscript. This work has been partially supported by Ministerio de Ciencia y Tecnologia of Spain, under Grant No CTM2004-06184-C02-02.
Funding AgencyGrant Number
Ministerio de Ciencia y Tecnologia of SpainCTM2004-06184-C02-02
Subject Keywords:bubbles; mass transfer; sorption
Issue or Number:1
Classification Code:PACS: 43.25.Yw
Record Number:CaltechAUTHORS:20100803-091758446
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Official Citation:Influence of the accommodation coefficient on nonlinear bubble oscillations Daniel Fuster, Guillermo Hauke, and Cesar Dopazo, J. Acoust. Soc. Am. 128, 5 (2010), DOI:10.1121/1.3436520
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19253
Deposited By: Tony Diaz
Deposited On:03 Aug 2010 18:32
Last Modified:03 Oct 2019 01:54

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