The long cross-over dynamics of capillary imbibition

Spontaneous capillary imbibition is a classical problem in interfacial fluid dynamics with a broad range of applications, from microfluidics to agriculture. Here we study the duration of the cross-over between an initial linear growth of the imbibition front to the diffusive-like growth limit of Was...

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Autores: Ruiz-Gimenez, E., Armstrong, S., Leveque, A., Michel, C., Pagonabarraga Mora, Ignacio, Wells, G.G., Hernández Machado, Aurora, Ledesma Aguilar, Rodrigo Andrés
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/193868
Acceso en línea:https://hdl.handle.net/2445/193868
Access Level:acceso abierto
Palabra clave:Capil·laritat
Dinàmica de fluids
Viscositat
Capillarity
Fluid dynamics
Viscosity
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spelling The long cross-over dynamics of capillary imbibitionRuiz-Gimenez, E.Armstrong, S.Leveque, A.Michel, C.Pagonabarraga Mora, IgnacioWells, G.G.Hernández Machado, AuroraLedesma Aguilar, Rodrigo AndrésCapil·laritatDinàmica de fluidsViscositatCapillarityFluid dynamicsViscositySpontaneous capillary imbibition is a classical problem in interfacial fluid dynamics with a broad range of applications, from microfluidics to agriculture. Here we study the duration of the cross-over between an initial linear growth of the imbibition front to the diffusive-like growth limit of Washburn's law. We show that local-resistance sources, such as the inertial resistance and the friction caused by the advancing meniscus, always limit the motion of an imbibing front. Both effects give rise to a cross-over of the growth exponent between the linear and the diffusive-like regimes. We show how this cross-over is much longer than previously thought - even longer than the time it takes the liquid to fill the porous medium. Such slowly slowing-down dynamics is likely to cause similar long cross-over phenomena in processes governed by wetting.Cambridge University Press2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/193868Articles publicats en revistes (Física de la Matèria Condensada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1017/jfm.2022.248Journal of Fluid Mechanics, 2022, vol. 939, p. A39https://doi.org/10.1017/jfm.2022.248cc-by (c) Ruiz-Gimenez, E. et al., 2022http://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1938682026-05-27T06:46:51Z
dc.title.none.fl_str_mv The long cross-over dynamics of capillary imbibition
title The long cross-over dynamics of capillary imbibition
spellingShingle The long cross-over dynamics of capillary imbibition
Ruiz-Gimenez, E.
Capil·laritat
Dinàmica de fluids
Viscositat
Capillarity
Fluid dynamics
Viscosity
title_short The long cross-over dynamics of capillary imbibition
title_full The long cross-over dynamics of capillary imbibition
title_fullStr The long cross-over dynamics of capillary imbibition
title_full_unstemmed The long cross-over dynamics of capillary imbibition
title_sort The long cross-over dynamics of capillary imbibition
dc.creator.none.fl_str_mv Ruiz-Gimenez, E.
Armstrong, S.
Leveque, A.
Michel, C.
Pagonabarraga Mora, Ignacio
Wells, G.G.
Hernández Machado, Aurora
Ledesma Aguilar, Rodrigo Andrés
author Ruiz-Gimenez, E.
author_facet Ruiz-Gimenez, E.
Armstrong, S.
Leveque, A.
Michel, C.
Pagonabarraga Mora, Ignacio
Wells, G.G.
Hernández Machado, Aurora
Ledesma Aguilar, Rodrigo Andrés
author_role author
author2 Armstrong, S.
Leveque, A.
Michel, C.
Pagonabarraga Mora, Ignacio
Wells, G.G.
Hernández Machado, Aurora
Ledesma Aguilar, Rodrigo Andrés
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Capil·laritat
Dinàmica de fluids
Viscositat
Capillarity
Fluid dynamics
Viscosity
topic Capil·laritat
Dinàmica de fluids
Viscositat
Capillarity
Fluid dynamics
Viscosity
description Spontaneous capillary imbibition is a classical problem in interfacial fluid dynamics with a broad range of applications, from microfluidics to agriculture. Here we study the duration of the cross-over between an initial linear growth of the imbibition front to the diffusive-like growth limit of Washburn's law. We show that local-resistance sources, such as the inertial resistance and the friction caused by the advancing meniscus, always limit the motion of an imbibing front. Both effects give rise to a cross-over of the growth exponent between the linear and the diffusive-like regimes. We show how this cross-over is much longer than previously thought - even longer than the time it takes the liquid to fill the porous medium. Such slowly slowing-down dynamics is likely to cause similar long cross-over phenomena in processes governed by wetting.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/193868
url https://hdl.handle.net/2445/193868
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1017/jfm.2022.248
Journal of Fluid Mechanics, 2022, vol. 939, p. A39
https://doi.org/10.1017/jfm.2022.248
dc.rights.none.fl_str_mv cc-by (c) Ruiz-Gimenez, E. et al., 2022
http://creativecommons.org/licenses/by/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Ruiz-Gimenez, E. et al., 2022
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv Articles publicats en revistes (Física de la Matèria Condensada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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