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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2021, Volume 113, Issue 6, Pages 378–384
DOI: https://doi.org/10.31857/S1234567821060045
(Mi jetpl6385)
 

CONDENSED MATTER

Cooperative transport of a nonwetting liquid in a random system of pores

V. D. Bormanab, A. A. Belogorlovba, I. V. Troninab

a National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow, 115409 Russia
b Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, 119991 Russia
References:
Abstract: A new mechanism has been proposed for the cooperative transport of a nonwetting liquid in a nanoporous medium. The description of transport is based on the theory of critical dynamics of multiscale phenomena in atomic systems. Transport is described as a time-multiscale process of interaction of a fluctuating filling–escape mode, macroscopic spontaneous filling mode, and filling mode caused by the critical pressure of compression of a dynamic percolation transition. The model is based on the solution of the system of kinetic equations for the distribution function of accessible and filled pores, which allows calculating macroscopic quantities describing processes at various time scales. A case where macroscopic transport modes are developed simultaneously in two different time scales is considered. A “nanoscopic” model of filling of nanopores under the development of the spontaneous mode taking into account the conservation of the volume of the suspension at the equality of rates of development of the modes at different time scales has been proposed. The predicted time dependences of the flux and volume of filled pores correspond to dissipationless transport in the system of nanopores. Theoretical dependences describe known and new experimental data. Unusual dynamic properties correspond to the properties of systems with positive feedback.
Funding agency Grant number
Russian Foundation for Basic Research 20-08-01003
This work was supported by the Russian Foundation for Basic Research (project no. 20-08-01003).
Received: 12.12.2020
Revised: 07.02.2021
Accepted: 08.02.2021
English version:
Journal of Experimental and Theoretical Physics Letters, 2021, Volume 113, Issue 6, Pages 378–383
DOI: https://doi.org/10.1134/S0021364021060035
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: V. D. Borman, A. A. Belogorlov, I. V. Tronin, “Cooperative transport of a nonwetting liquid in a random system of pores”, Pis'ma v Zh. Èksper. Teoret. Fiz., 113:6 (2021), 378–384; JETP Letters, 113:6 (2021), 378–383
Citation in format AMSBIB
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\paper Cooperative transport of a nonwetting liquid in a random system of pores
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2021
\vol 113
\issue 6
\pages 378--384
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\crossref{https://doi.org/10.31857/S1234567821060045}
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\jour JETP Letters
\yr 2021
\vol 113
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\pages 378--383
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