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Numerical investigation of shock induced bubble collapse in water
KTH, School of Engineering Sciences (SCI), Mechanics.
2016 (English)In: Physics of fluids, ISSN 1070-6631, E-ISSN 1089-7666, Vol. 28, no 4, 046101Article in journal (Refereed) PublishedText
Abstract [en]

A semi-conservative, stable, interphase-capturing numerical scheme for shock propagation in heterogeneous systems is applied to the problem of shock propagation in liquid-gas systems. The scheme is based on the volume-fraction formulation of the equations of motion for liquid and gas phases with separate equations of state. The semi-conservative formulation of the governing equations ensures the absence of spurious pressure oscillations at the material interphases between liquid and gas. Interaction of a planar shock in water with a single spherical bubble as well as twin adjacent bubbles is investigated. Several stages of the interaction process are considered, including focusing of the transmitted shock within the deformed bubble, creation of a water-hammer shock as well as generation of high-speed liquid jet in the later stages of the process.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2016. Vol. 28, no 4, 046101
Keyword [en]
Acoustic wave propagation, Equations of motion, Equations of state, Equations of state of gases, Liquefied gases, Liquids, Governing equations, Heterogeneous systems, Interaction process, Liquid and gas phasis, Liquid gas systems, Numerical investigations, Pressure oscillation, Shock propagation
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Other Physics Topics
URN: urn:nbn:se:kth:diva-187203DOI: 10.1063/1.4944903ISI: 000377709000039ScopusID: 2-s2.0-84963776875OAI: diva2:929443
Swedish Research Council

QC 20160518

Available from: 2016-05-18 Created: 2016-05-18 Last updated: 2016-07-11Bibliographically approved

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Apazidis, Nicholas
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