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Unsteady drag force on an immersed sphere oscillating near a wall

hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorZHANG, Zaicheng
hal.structure.identifierUniversity of Twente
dc.contributor.authorBERTIN, Vincent
hal.structure.identifierUniversity of Twente
dc.contributor.authorESSINK, Martin
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorZHANG, Hao
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorFARES, Nicolas
hal.structure.identifierPeking University [Beijing]
dc.contributor.authorSHEN, Zaiyi
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorBICKEL, Thomas
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorSALEZ, Thomas
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorMAALI, Abdelhamid
dc.date.issued2023
dc.identifier.issn0022-1120
dc.description.abstractEnThe unsteady hydrodynamic drag exerted on an oscillating sphere near a planar wall is addressed experimentally, theoretically, and numerically. The experiments are performed by using colloidal-probe Atomic Force Microscopy (AFM) in thermal noise mode. The natural resonance frequencies and quality factors are extracted from the measurement of the power spectrum density of the probe oscillation for a broad range of gap distances and Womersley numbers. The shift in the natural resonance frequency of the colloidal probe as the probe goes close to a solid wall infers the wall-induced variations of the effective mass of the probe. Interestingly, a crossover from a positive to a negative shift is observed as the Womersley number increases. In order to rationalize the results, the confined unsteady Stokes equation is solved numerically using a finite-element method, as well as asymptotic calculations.The in-phase and out-of-phase terms of the hydrodynamic drag acting on the sphere are obtained and agree well to the experimental results. All together, the experimental, theoretical, and numerical results show that the hydrodynamic force felt by an immersed sphere oscillating near a wall is highly dependent on the Womersley number.
dc.description.sponsorshipMouvement brownien au voisinage d'interfaces molles - ANR-21-ERCC-0010
dc.description.sponsorshipCapteur Interférométrique de Contraintes de Surface - ANR-21-CE06-0029
dc.description.sponsorshipFrottements dans les systèmes complexes
dc.description.sponsorshipElectrodynamical diffuse layers
dc.description.sponsorshipUniversity of Bordeaux Graduate Scholl in Light Sciences & Technologies - ANR-17-EURE-0027
dc.language.isoen
dc.publisherCambridge University Press (CUP)
dc.title.enUnsteady drag force on an immersed sphere oscillating near a wall
dc.typeArticle de revue
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
dc.subject.halPhysique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn]
dc.identifier.arxiv2307.05991
dc.description.sponsorshipEuropeBrownian Motion near Soft Interfaces
bordeaux.journalJournal of Fluid Mechanics
bordeaux.pageA21
bordeaux.volume977
bordeaux.peerReviewedoui
hal.identifierhal-04158163
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04158163v1
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