A diffuse interface model is exploited to study in details the dynamics of a cavitation vapor bubble, by including phase change, transition to supercritical conditions, shock wave propagation and thermal conduction. The numerical experiments show that the actual dynamic is a sequence of collapses and rebounds demonstrating the importance of nonequilibrium phase changes. In particular the transition to supercritical conditions avoids the full condensation and leads to shockwave emission after the collapse and to successive bubble rebound.

Diffuse interface modeling of a radial vapor bubble collapse / Magaletti, Francesco; Marino, Luca; Casciola, Carlo Massimo. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 656(2015). ((Intervento presentato al convegno 9th International Symposium on Cavitation tenutosi a Lausanne, Switzerland nel December 6-10 2015 [10.1088/1742-6596/656/1/012028].

Diffuse interface modeling of a radial vapor bubble collapse

MAGALETTI, FRANCESCO
;
MARINO, Luca;CASCIOLA, Carlo Massimo
2015

Abstract

A diffuse interface model is exploited to study in details the dynamics of a cavitation vapor bubble, by including phase change, transition to supercritical conditions, shock wave propagation and thermal conduction. The numerical experiments show that the actual dynamic is a sequence of collapses and rebounds demonstrating the importance of nonequilibrium phase changes. In particular the transition to supercritical conditions avoids the full condensation and leads to shockwave emission after the collapse and to successive bubble rebound.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/849061
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