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Nonequilibrium capillary pressure of a miscible meniscus

Nonequilibrium capillary pressure of a miscible meniscus
Nonequilibrium capillary pressure of a miscible meniscus
We examine the dynamics of a miscible displacement in a capillary, calculating the non-equilibrium capillary pressure of a moving (and slowly-diffusing) miscible meniscus. During the displacement, the capillary pressure varies with time following stretching and smearing of a miscible interface. The capillary pressure remains different from zero for a long time (on a diffusion time scale), slowing down the displacement. This capillary pressure is however completely ignored by all theories currently available for practical modelling of miscible displacements in capillaries and porous matrices.
0743-7463
4817–4826
Vorobev, Anatoliy
911a4e1e-0c34-4297-b52e-c22a2b9dec01
Prokopev, Sergei
ac7f4544-8463-4ff7-8c11-42d003c543e9
Lyubimova, Tatiana
ea977036-7fca-4d61-abf5-1da0a94c9b35
Vorobev, Anatoliy
911a4e1e-0c34-4297-b52e-c22a2b9dec01
Prokopev, Sergei
ac7f4544-8463-4ff7-8c11-42d003c543e9
Lyubimova, Tatiana
ea977036-7fca-4d61-abf5-1da0a94c9b35

Vorobev, Anatoliy, Prokopev, Sergei and Lyubimova, Tatiana (2021) Nonequilibrium capillary pressure of a miscible meniscus. Langmuir, 37 (16), 4817–4826. (doi:10.1021/acs.langmuir.0c03633).

Record type: Article

Abstract

We examine the dynamics of a miscible displacement in a capillary, calculating the non-equilibrium capillary pressure of a moving (and slowly-diffusing) miscible meniscus. During the displacement, the capillary pressure varies with time following stretching and smearing of a miscible interface. The capillary pressure remains different from zero for a long time (on a diffusion time scale), slowing down the displacement. This capillary pressure is however completely ignored by all theories currently available for practical modelling of miscible displacements in capillaries and porous matrices.

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Accepted/In Press date: 5 April 2021
Published date: 15 April 2021

Identifiers

Local EPrints ID: 448207
URI: http://eprints.soton.ac.uk/id/eprint/448207
ISSN: 0743-7463
PURE UUID: 7ec58016-490e-4f68-a243-888790274265
ORCID for Anatoliy Vorobev: ORCID iD orcid.org/0000-0002-6458-9390

Catalogue record

Date deposited: 15 Apr 2021 16:30
Last modified: 26 Nov 2021 02:53

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Contributors

Author: Sergei Prokopev
Author: Tatiana Lyubimova

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