Dynamics of gas bubble growth in a high-viscosity gas-saturated liquid during its decompression at a finite rate

Dynamics of gas bubble growth in a highly viscous gas-saturated liquid (magmatic melt) subjected to decompression is investigated. A mathematical model of the process, which is a joint dynamic and diffusion problem, is proposed. An approximate semi-analytical solution is found based on the existence...

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Bibliographic Details
Published in:Thermophysics and aeromechanics 2023-01, Vol.30 (1), p.153-162
Main Authors: Chernov, A. A., Davydov, M. N., Pil’nik, A. A.
Format: Article
Language:English
Subjects:
Exact solutions
Physics
Physics and Astronomy
Self-similarity
Thermodynamics
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Summary:Dynamics of gas bubble growth in a highly viscous gas-saturated liquid (magmatic melt) subjected to decompression is investigated. A mathematical model of the process, which is a joint dynamic and diffusion problem, is proposed. An approximate semi-analytical solution is found based on the existence of a quasi-stationary state for the bubble growth process. The influence of certain factors on the process under consideration at all its stages is shown. In particular, a significant dependence of the bubble growth rate on the decompression rate is illustrated. It is shown that, at long times, bubble growth has a self-similar character and occurs only as a result of gas desorption from the surrounding liquid.
ISSN:1531-8699
0869-8643
1531-8699
DOI:10.1134/S0869864323010171