Inverse saffman-taylor experiments with ...
Document type :
Article dans une revue scientifique: Article original
Title :
Inverse saffman-taylor experiments with particles lead to capillarity driven fingering instabilities
Author(s) :
Bihi, Ilyesse [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Department of Chemical Engineering [Gainesville] [UF|CHE]
Baudoin, Michael [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Butler, Jason E. [Auteur]
Department of Chemical Engineering [Gainesville] [UF|CHE]
Faille, Christine [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Zoueshtiagh, Farzam [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Department of Chemical Engineering [Gainesville] [UF|CHE]
Baudoin, Michael [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Butler, Jason E. [Auteur]
Department of Chemical Engineering [Gainesville] [UF|CHE]
Faille, Christine [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Zoueshtiagh, Farzam [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Journal title :
Physical Review Letters
Publisher :
American Physical Society
Publication date :
2016
ISSN :
0031-9007
Keyword(s) :
microbilles
English keyword(s) :
interfaces
HAL domain(s) :
Sciences du Vivant [q-bio]
Sciences du Vivant [q-bio]/Ingénierie des aliments
Sciences de l'ingénieur [physics]/Génie des procédés
Sciences du Vivant [q-bio]/Ingénierie des aliments
Sciences de l'ingénieur [physics]/Génie des procédés
English abstract : [en]
Using air to displace a viscous fluid contained in a Hele-Shaw cell can create a fingering pattern at the interface between the fluids if the capillary number exceeds a critical value. This Saffman-Taylor instability is ...
Show more >Using air to displace a viscous fluid contained in a Hele-Shaw cell can create a fingering pattern at the interface between the fluids if the capillary number exceeds a critical value. This Saffman-Taylor instability is revisited for the inverse case of a viscous fluid displacing air when partially wettable hydrophilic particles are lying on the walls. Though the inverse case is otherwise stable, the presence of the particles results in a fingering instability at low capillary number. This capillary-driven instability is driven by the integration of particles into the interface which results from the minimization of the interfacial energy. Both axisymmetric and rectangular geometries are considered in order to quantify this phenomenon.Show less >
Show more >Using air to displace a viscous fluid contained in a Hele-Shaw cell can create a fingering pattern at the interface between the fluids if the capillary number exceeds a critical value. This Saffman-Taylor instability is revisited for the inverse case of a viscous fluid displacing air when partially wettable hydrophilic particles are lying on the walls. Though the inverse case is otherwise stable, the presence of the particles results in a fingering instability at low capillary number. This capillary-driven instability is driven by the integration of particles into the interface which results from the minimization of the interfacial energy. Both axisymmetric and rectangular geometries are considered in order to quantify this phenomenon.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Source :
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