The onset of solidification: From interface formation to the Stefan regime

The onset of a solidification process is considered in a situation where the free surface of a warm liquid is touched by a sufficiently cold solid. The process is analyzed in terms of a model that takes into account the formation of a liquid–solid interface as the two media are brought in contact an...

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Bibliographic Details
Published in:The Journal of chemical physics 2022-05, Vol.156 (19), p.194701-194701
Main Authors: Belozerov, Alexander A., Shikhmurzaev, Yulii D.
Format: Article
Language:English
Subjects:
Free surfaces
Liquid-solid interfaces
Melt temperature
Solidification
Solids
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Summary:The onset of a solidification process is considered in a situation where the free surface of a warm liquid is touched by a sufficiently cold solid. The process is analyzed in terms of a model that takes into account the formation of a liquid–solid interface as the two media are brought in contact and then the appearance of the solidified liquid as a third bulk phase. As is shown, the temperature at the liquid–solid interface and then at the solidification front evolves in a non-monotone way, and when the solidification front appears and starts to move, its velocity is not a function of its temperature. The classical Stefan regime of solidification appears as a limit as the temperature at the solidification front evolves toward the melting temperature.
ISSN:0021-9606
1089-7690
DOI:10.1063/5.0084044