Lateral instability in normal viscous fingers

We study a low-amplitude, long-wavelength lateral instability of the Saffman-Taylor finger by means of a phase-field model. We observe such an instability in two situations in which small dynamic perturbations are overimposed to a constant pressure drop. We first study the case in which the perturba...

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Autores: Ledesma Aguilar, Rodrigo Andrés, Quevedo-Reyes, M., Corvera Poiré, Eugenia, Hernández Machado, Aurora
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2005
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/18701
Acceso en línea:https://hdl.handle.net/2445/18701
Access Level:acceso abierto
Palabra clave:Dinàmica de fluids
Viscositat
Fluid dynamics
Viscosity
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spelling Lateral instability in normal viscous fingersLedesma Aguilar, Rodrigo AndrésQuevedo-Reyes, M.Corvera Poiré, EugeniaHernández Machado, AuroraDinàmica de fluidsViscositatFluid dynamicsViscosityWe study a low-amplitude, long-wavelength lateral instability of the Saffman-Taylor finger by means of a phase-field model. We observe such an instability in two situations in which small dynamic perturbations are overimposed to a constant pressure drop. We first study the case in which the perturbation consists of a single oscillatory mode and then a case in which the perturbation consists of temporal noise. In both cases the instability undergoes a process of selection.The American Physical Society2005info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/18701Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.71.016312Physical Review E, 2005, vol. E71, p. 016312-1-016312-7http://dx.doi.org/10.1103/PhysRevE.71.016312(c) The American Physical Society, 2005info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/187012026-05-27T06:46:51Z
dc.title.none.fl_str_mv Lateral instability in normal viscous fingers
title Lateral instability in normal viscous fingers
spellingShingle Lateral instability in normal viscous fingers
Ledesma Aguilar, Rodrigo Andrés
Dinàmica de fluids
Viscositat
Fluid dynamics
Viscosity
title_short Lateral instability in normal viscous fingers
title_full Lateral instability in normal viscous fingers
title_fullStr Lateral instability in normal viscous fingers
title_full_unstemmed Lateral instability in normal viscous fingers
title_sort Lateral instability in normal viscous fingers
dc.creator.none.fl_str_mv Ledesma Aguilar, Rodrigo Andrés
Quevedo-Reyes, M.
Corvera Poiré, Eugenia
Hernández Machado, Aurora
author Ledesma Aguilar, Rodrigo Andrés
author_facet Ledesma Aguilar, Rodrigo Andrés
Quevedo-Reyes, M.
Corvera Poiré, Eugenia
Hernández Machado, Aurora
author_role author
author2 Quevedo-Reyes, M.
Corvera Poiré, Eugenia
Hernández Machado, Aurora
author2_role author
author
author
dc.subject.none.fl_str_mv Dinàmica de fluids
Viscositat
Fluid dynamics
Viscosity
topic Dinàmica de fluids
Viscositat
Fluid dynamics
Viscosity
description We study a low-amplitude, long-wavelength lateral instability of the Saffman-Taylor finger by means of a phase-field model. We observe such an instability in two situations in which small dynamic perturbations are overimposed to a constant pressure drop. We first study the case in which the perturbation consists of a single oscillatory mode and then a case in which the perturbation consists of temporal noise. In both cases the instability undergoes a process of selection.
publishDate 2005
dc.date.none.fl_str_mv 2005
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/2445/18701
url https://hdl.handle.net/2445/18701
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.71.016312
Physical Review E, 2005, vol. E71, p. 016312-1-016312-7
http://dx.doi.org/10.1103/PhysRevE.71.016312
dc.rights.none.fl_str_mv (c) The American Physical Society, 2005
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The American Physical Society, 2005
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv The American Physical Society
publisher.none.fl_str_mv The American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
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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