Effect of Confinement on Capillary Phase Transition in Granular Aggregates

© 2020 American Physical Society. Using a 3D mean-field lattice-gas model, we analyze the effect of confinement on the nature of capillary phase transition in granular aggregates with varying disorder and their inverse porous structures obtained by interchanging particles and pores. Surprisingly, th...

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Main Authors: Monfared, Siavash, Zhou, Tingtao, Andrade, José E, Ioannidou, Katerina, Radjaï, Farhang, Ulm, Franz-Josef, Pellenq, Roland J-M
Other Authors: Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Format: Article
Language:English
Published: American Physical Society (APS) 2021
Online Access:https://hdl.handle.net/1721.1/133080
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author Monfared, Siavash
Zhou, Tingtao
Andrade, José E
Ioannidou, Katerina
Radjaï, Farhang
Ulm, Franz-Josef
Pellenq, Roland J-M
author2 Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
author_facet Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Monfared, Siavash
Zhou, Tingtao
Andrade, José E
Ioannidou, Katerina
Radjaï, Farhang
Ulm, Franz-Josef
Pellenq, Roland J-M
author_sort Monfared, Siavash
collection MIT
description © 2020 American Physical Society. Using a 3D mean-field lattice-gas model, we analyze the effect of confinement on the nature of capillary phase transition in granular aggregates with varying disorder and their inverse porous structures obtained by interchanging particles and pores. Surprisingly, the confinement effects are found to be much less pronounced in granular aggregates as opposed to porous structures. We show that this discrepancy can be understood in terms of the surface-surface correlation length with a connected path through the fluid domain, suggesting that this length captures the true degree of confinement. We also find that the liquid-gas phase transition in these porous materials is of second order nature near capillary critical temperature, which is shown to represent a true critical temperature, i.e., independent of the degree of disorder and the nature of the solid matrix, discrete or continuous. The critical exponents estimated here from finite-size scaling analysis suggest that this transition belongs to the 3D random field Ising model universality class as hypothesized by F. Brochard and P.G. de Gennes, with the underlying random fields induced by local disorder in fluid-solid interactions.
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spelling mit-1721.1/1330802024-06-06T14:18:00Z Effect of Confinement on Capillary Phase Transition in Granular Aggregates Monfared, Siavash Zhou, Tingtao Andrade, José E Ioannidou, Katerina Radjaï, Farhang Ulm, Franz-Josef Pellenq, Roland J-M Massachusetts Institute of Technology. Department of Civil and Environmental Engineering © 2020 American Physical Society. Using a 3D mean-field lattice-gas model, we analyze the effect of confinement on the nature of capillary phase transition in granular aggregates with varying disorder and their inverse porous structures obtained by interchanging particles and pores. Surprisingly, the confinement effects are found to be much less pronounced in granular aggregates as opposed to porous structures. We show that this discrepancy can be understood in terms of the surface-surface correlation length with a connected path through the fluid domain, suggesting that this length captures the true degree of confinement. We also find that the liquid-gas phase transition in these porous materials is of second order nature near capillary critical temperature, which is shown to represent a true critical temperature, i.e., independent of the degree of disorder and the nature of the solid matrix, discrete or continuous. The critical exponents estimated here from finite-size scaling analysis suggest that this transition belongs to the 3D random field Ising model universality class as hypothesized by F. Brochard and P.G. de Gennes, with the underlying random fields induced by local disorder in fluid-solid interactions. 2021-10-25T14:24:23Z 2021-10-25T14:24:23Z 2020-12 2020-08 2021-10-21T17:30:45Z Article http://purl.org/eprint/type/JournalArticle 1079-7114 0031-9007 https://hdl.handle.net/1721.1/133080 Siavash Monfared, Tingtao Zhou, José E. Andrade, Katerina Ioannidou, Farhang Radjaï, Franz-Josef Ulm, and Roland J.-M. Pellenq, Effect of Confinement on Capillary Phase Transition in Granular Aggregates, Phys. Rev. Lett. 125, 255501 en 10.1103/PHYSREVLETT.125.255501 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS
spellingShingle Monfared, Siavash
Zhou, Tingtao
Andrade, José E
Ioannidou, Katerina
Radjaï, Farhang
Ulm, Franz-Josef
Pellenq, Roland J-M
Effect of Confinement on Capillary Phase Transition in Granular Aggregates
title Effect of Confinement on Capillary Phase Transition in Granular Aggregates
title_full Effect of Confinement on Capillary Phase Transition in Granular Aggregates
title_fullStr Effect of Confinement on Capillary Phase Transition in Granular Aggregates
title_full_unstemmed Effect of Confinement on Capillary Phase Transition in Granular Aggregates
title_short Effect of Confinement on Capillary Phase Transition in Granular Aggregates
title_sort effect of confinement on capillary phase transition in granular aggregates
url https://hdl.handle.net/1721.1/133080
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