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Raunak Bardia
Department of Mechanical Engineering, University of Wisconsin-Madison, WI 53706, USA

Mario F. Trujillo
Department of Mechanical Engineering, University of Wisconsin-Madison, 1513 University Ave., Madison WI 53706, USA

DOI: 10.1615/TFEC2019.fnd.028973
pages 1071-1076

KEY WORDS: Vapor Bubble Collapse, Rayleigh Plesset, Liquid Energy


A numerical/theoretical analysis is presented to characterize the dynamics of a spherical vapor bubble, collapsing at different degrees of severity quantified by the non-dimensional number, B [1]. Interplay between the momentum and energy dynamics is examined, and it is mathematically shown that the two are connected through the interfacial vapor velocity and the rate of change of vapor pressure. It is shown that for the limiting cases of heat transfer and liquid inertia dominated collapse, the small magnitude of interfacial vapor velocity corresponds to an uncoupled behavior between the energy and momentum dynamics. However, away from these limiting cases, in the intermediate regime, both the energy and momentum are connected due to an appreciable magnitude of interfacial vapor velocity.

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