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Displacement of colloidal dispersions in Porous Media: experimental & numerical approaches

hal.structure.identifierTransferts, écoulements, fluides, énergétique [TREFLE]
dc.contributor.authorAHMADI-SENICHAULT, Azita
hal.structure.identifierTransferts, écoulements, fluides, énergétique [TREFLE]
dc.contributor.authorCANSECO, Vladimir
dc.contributor.authorSEFRIOUI-CHAIBAINOU, Nisrine
dc.contributor.authorOMARI, Abdelaziz
hal.structure.identifierTransferts, écoulements, fluides, énergétique [TREFLE]
dc.contributor.authorBERTIN, Henri
IDREF: 069375607
dc.date.accessioned2021-05-14T09:53:32Z
dc.date.available2021-05-14T09:53:32Z
dc.date.issued2016
dc.identifier.issn2296-3642
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/77548
dc.description.abstractEnThe main objective of this paper is to give more insight on colloids deposition and re-entrainment in presence of a rough surface. Experiments on retention and release of colloids in a porous medium are first presented. The influence of physicochemical and hydrodynamic conditions is investigated. The experimental results cannot be qualitatively interpreted using the DLVO theory and knowledges at pore scale are then needed. A 3D numerical simulation approach at the pore scale is therefore proposed where the motion of colloids is solved in presence of collector surfaces bearing various kinds of asperities and by taking into account physico-chemical interactions calculated at each time step during colloid movement. It is obviously observed that both deposition and mobilization of particles are dependent on solution chemistry and hydrodynamic conditions and are significantly affected by the form and size of the local roughness of the pore surface. Therefore, depending on solution ionic strength and surface topography, colloids may be adsorbed or not and when a particle is retained an increase of flow strength is then needed to remove it and such an increase is specific to the location of occurrence of the adsorption step. In general, simulation results allow us to explain our experimental results that show that by steeply increasing the flow strength, more and more fractions of particles retained inside the porous medium are released until all particles are removed.
dc.language.isoen
dc.publisherTrans Tech Publications Ltd.
dc.subject.enPorous media
dc.subject.enColloidal dispersion
dc.subject.enRetention/release
dc.subject.enExperiments
dc.subject.enNumerical simulations
dc.title.enDisplacement of colloidal dispersions in Porous Media: experimental & numerical approaches
dc.typeArticle de revue
dc.subject.halPhysique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn]
dc.subject.halSciences de l'ingénieur [physics]/Génie des procédés
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des fluides [physics.class-ph]
dc.subject.halSciences de l'ingénieur [physics]/Milieux fluides et réactifs
bordeaux.journalDiffusion foundations
bordeaux.page53-68
bordeaux.volumeHeat and Mass Transfer in Porous Materials
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-01331923
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01331923v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Diffusion%20foundations&rft.date=2016&rft.volume=Heat%20and%20Mass%20Transfer%20in%20Porous%20Materials&rft.spage=53-68&rft.epage=53-68&rft.eissn=2296-3642&rft.issn=2296-3642&rft.au=AHMADI-SENICHAULT,%20Azita&CANSECO,%20Vladimir&SEFRIOUI-CHAIBAINOU,%20Nisrine&OMARI,%20Abdelaziz&BERTIN,%20Henri&rft.genre=article


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