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Direct numerical simulation of colloid transport at the microscopic scale: influence of ionic strength in the presence of a rough surface

hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorSEFRIOUI-CHAIBAINOU, Nisrine
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorAHMADI-SENICHAULT, Azita
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorBERTIN, Henri
IDREF: 069375607
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorOMARI, Abdelaziz
dc.date.accessioned2021-05-14T09:56:16Z
dc.date.available2021-05-14T09:56:16Z
dc.date.issued2012-05-14
dc.date.conference2012-05-14
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/77764
dc.description.abstractEnThe way colloids are transported, deposited or detached in porous media is of great importance in many practical problems such as filtration, environmental issues, petroleum engineering, … In this work, direct numerical simulations of the transport of a single particle near the fluid/solid interface have been performed. For this purpose, new routines have been implemented in a research code in order to take into account DLVO forces for smooth and rough pore surfaces. A dimensional analysis is performed, pointing out the important role of the ratio of electrostatic forces to the hydrodynamic forces on the particle behaviour. The test cases considered are chosen on the basis of experimental results presented in the literature. Transport of a particle near a solid surface is simulated for a given Reynolds number at different values of ionic strength and the influence of various surface roughness types are analysed. The simulations illustrate three different behaviours: (i) the particle is transported by the bulk fluid (ii) the particle is adsorbed and rolls on the solid surface (iii) the particle is adsorbed by the surface and is blocked. An analysis in terms of residence time is proposed. Simulations also show that an increase in the Reynolds number leads to the mobilisation of the particle in all cases studied.
dc.language.isoen
dc.subject.enRough pore surfaces
dc.subject.enColloid transport
dc.subject.enIonic strength
dc.subject.enPorous media
dc.title.enDirect numerical simulation of colloid transport at the microscopic scale: influence of ionic strength in the presence of a rough surface
dc.typeCommunication dans un congrès avec actes
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des fluides [physics.class-ph]
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.countryUS
bordeaux.title.proceeding4th International Conference on Porous Media & Annual Meeting of the International Society for Porous Media
bordeaux.conference.cityWest Lafayette
bordeaux.peerReviewedoui
hal.identifierhal-01193300
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01193300v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2012-05-14&rft.au=SEFRIOUI-CHAIBAINOU,%20Nisrine&AHMADI-SENICHAULT,%20Azita&BERTIN,%20Henri&OMARI,%20Abdelaziz&rft.genre=proceeding


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