Abstract
In this work, a microhydrodynamic approach is used to investigate the motion of the meniscus on a vapor—liquid interface in narrow slitlike pores. Calculations are performed on the basis of Navier—Stokes—type equations, in which the transport coefficients and equation of state for a compound are calculated within the simplest molecular model of a gas lattice that takes into account the inherent volume of molecules and their interaction with each other and the pore wall. The dynamic modes of the flow of a liquid monatomic gas (argon) bearing a vapor bubble through nanosized pores at a given pressure difference across the pore are studied. The differences in the average rates of the liquid and vapor-bubble motion in a quasi-stationary regime caused by the intensive nonequilibrium processes of molecule exchange on the liquid—vapor and vapor—liquid boundaries, i.e., by the phase transitions on both boundaries of a bubble, are revealed.
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Original Russian Text © Yu.K. Tovbin, R.Ya. Tugazakov, 2010, published in Teoreticheskie Osnovy Khimicheskoi Tekhnologii, 2010, Vol. 44, No. 1, pp. 104–117.
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Tovbin, Y.K., Tugazakov, R.Y. Motion of a vapor—liquid meniscus in narrow slitlike pores. Theor Found Chem Eng 44, 102–115 (2010). https://doi.org/10.1134/S0040579510010124
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DOI: https://doi.org/10.1134/S0040579510010124