Influence of the Heat of Phase Transition on the Onset of Filtration Convection in Mixtures of Liquids with Limited Mutual Solubility

Consideration is given to the problem on the convective stability of mechanical equilibrium of a mixture of liquids with limited mutual solubility in a porous medium. It is assumed that in the initial state of mechanical equilibrium, the mixture fills the horizontal porous layer and is separated int...

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Bibliographic Details
Published in:Journal of engineering physics and thermophysics 2021-11, Vol.94 (6), p.1571-1581
Main Authors: Ramazanov, M. M., Bulgakova, N. S.
Format: Article
Language:English
Subjects:
Classical Mechanics
Complex Systems
Convection
Engineering
Engineering Thermodynamics
Heat and Mass Transfer
Industrial Chemistry/Chemical Engineering
Liquids
Phase transitions
Porous media
Solubility
Thermodynamics
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Summary:Consideration is given to the problem on the convective stability of mechanical equilibrium of a mixture of liquids with limited mutual solubility in a porous medium. It is assumed that in the initial state of mechanical equilibrium, the mixture fills the horizontal porous layer and is separated into two phases: the upper lighter phase and the lower heavy one. At the lower boundary of the layer, the higher temperature is maintained than that at the upper boundary. A study is made of the influence of the heat of phase transition and the ratio of phase densities on conditions for the onset of convection and on the structure of occurring flows.
ISSN:1062-0125
1573-871X
DOI:10.1007/s10891-021-02438-y