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Title: Non-spherical multi-oscillations of a bubble in a compressible liquid
Authors: Wang, Qian-xi
Yang, Yuan-xiang
Tan, Danielle Sweimann
Su, Jian
Tan, Soon Keat
Keywords: compressible bubble dynamics; weakly compressible theory; boundary integral method
Issue Date: 2015
Source: Wang, Q. X., Yang, Y. X., Tan, D. S., Su, J., & Tan, S. K. (2015). Non-spherical multi-oscillations of a bubble in a compressible liquid. Journal of Hydrodynamics, Ser. B, 26(6), 848-855.
Series/Report no.: Journal of Hydrodynamics
Abstract: Bubble dynamics are associated with wide and important applications in cavitation erosion in many industrial systems, medical ultrasonics and underwater explosions. Two recent developments to this classical problem are reviewed in this paper. Firstly, computational studies on the problem have commonly been based on an incompressible fluid model. However, a bubble usually undergoes significantly damped oscillation due to the compressible effects. We model this phenomenon using weakly compressible theory and a modified boundary integral method. This model considers the energy loss due to shock waves emitted at minimum bubble volumes. Secondly, the computational studies so far have largely been concerned with the first-cycle of oscillation. However, a bubble usually oscillates for a few cycles before it breaks into much smaller ones. We model both the first- and second-cycles of oscillation and predict damped oscillations. Our computations correlate well with the experimental data. Key words: compressible bubble dynamics; weakly compressible theory; boundary integral method
ISSN: 1001-6058
DOI: 10.1016/S1001-6058(14)60093-7
Schools: School of Civil and Environmental Engineering 
Research Centres: Maritime Research Centre 
Nanyang Environment and Water Research Institute 
Rights: © 2015 Publishing House for Journal of Hydrodynamics. Published by Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Hydrodynamics, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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