Dynamics of a bubble in a liquid under laser pulse action

Simulation was performed of the behavior of a vapor bubble in a liquid under laser irradiation in laboratory experiments. A mathematical model was developed to analyze the effect of heat conduction, diffusion, and mass transfer on the bubble dynamics under compression and expansion. It is found that...

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Bibliographic Details
Published in:Journal of applied mechanics and technical physics 2002-01, Vol.43 (1), p.43-49
Main Authors: Akhatov, I S, Vakhitova, N K, Topol'nikov, A S
Format: Article
Language:English
Online Access:Get full text
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Summary:Simulation was performed of the behavior of a vapor bubble in a liquid under laser irradiation in laboratory experiments. A mathematical model was developed to analyze the effect of heat conduction, diffusion, and mass transfer on the bubble dynamics under compression and expansion. It is found that at the stage of collapse, intense condensation occurs on the bubble wall, which results in a significant (more than 15-fold) decrease in bubble mass and an increase in pressure (to 10 exp 5 atm) and temperature (to 10 exp 4 K). Results of numerical calculations of the radius of the first rebound and the amplitude of the divergent shock wave in water are compared with experimental data. It is shown that small (about 1%) additives of an incondensable gas lead to a considerable decrease in mass transfer on the bubble wall.
ISSN:0021-8944