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Title: Cavitation-induced fragmentation of an acoustically-levitated droplet
Authors: Avila, Silvestre Roberto Gonzalez
Ohl, Claus-Dieter
Keywords: Acoustically Levitated Droplet
Issue Date: 2015
Source: Avila, S. R. G., & Ohl, C.-D. (2015). Cavitation-induced fragmentation of an acoustically-levitated droplet. Journal of Physics: Conference Series, 656(1), 012017-. doi:10.1088/1742-6596/656/1/012017
Series/Report no.: Journal of Physics: Conference Series
Abstract: In this paper we investigate the initial sequence of events that lead to the fragmentation of a millimetre sized water droplets when interacting with a focused ns-laser pulse. The experimental results show complex processes that result from the reflection of an initial shock wave from plasma generation with the soft boundary of the levitating droplet; furthermore, when the reflected waves from the walls of the droplet refocus they leave behind a trail of microbubbles that later act as cavitation inception regions. Numerical simulations of a shock wave impacting and reflecting from a soft boundary are also reported; the simulated results show that the lowest pressure inside the droplet occurs at the equatorial plane. The results of the numerical model display good agreement with the experimental results both in time and in space.
ISSN: 1742-6588
DOI: 10.1088/1742-6596/656/1/012017
Rights: © 2015 The Author(s). Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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