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Visco-elastic drag forces and crossover from no-slip to slip boundary conditions for flow near air-water interfaces

hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorMAALI, Abdelhamid
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorBOISGARD, Rodolphe
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorCHRAIBI, Hamza
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorZHANG, Z
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorKELLAY, Hamid
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorWÜRGER, Aloïs
dc.date.issued2017
dc.identifier.issn0031-9007
dc.description.abstractEnThe " free " water surface is generally prone to contamination with surface impurities be they surfactants, particles or other surface active agents. The presence of such impurities can modify flow boundary near such interfaces in a drastic manner. Here we show that vibrating a small sphere mounted on an AFM cantilever near a gas bubble immersed in water, is an excellent probe of surface contamination. Both viscous and elastic forces are exerted by an air-water interface on the vibrating sphere even when very low doses of contaminants are present. The viscous drag forces show a cross-over from no-slip to slip boundary conditions while the elastic forces show a nontrivial variation as the vibration frequency changes. We provide a simple model to rationalize these results and propose a simple way of evaluating the concentration of such surface impurities.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enVisco-elastic drag forces and crossover from no-slip to slip boundary conditions for flow near air-water interfaces
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevLett.118.084501
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
bordeaux.journalPhysical Review Letters
bordeaux.page084501
bordeaux.volume118
bordeaux.issue8
bordeaux.peerReviewedoui
hal.identifierhal-01481369
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01481369v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20Letters&rft.date=2017&rft.volume=118&rft.issue=8&rft.spage=084501&rft.epage=084501&rft.eissn=0031-9007&rft.issn=0031-9007&rft.au=MAALI,%20Abdelhamid&BOISGARD,%20Rodolphe&CHRAIBI,%20Hamza&ZHANG,%20Z&KELLAY,%20Hamid&rft.genre=article


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