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hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorGIDITURI, Harinadha
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorWÜRGER, Alois
dc.contributor.authorSTRATFORD, Kevin
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorLINTUVUORI, Juho
dc.date.issued2021-05-11
dc.identifier.issn1070-6631
dc.description.abstractEnWe study the dynamics of a spherical colloidal particle pulled along the fluid-fluid interface using lattice Boltzmann (LB) simulations. We consider an interface with a finite width and include both the effects of the thermodynamics of the interface and the particle wetting, characterized by the contact angle h between the particle surface and the interface, in addition to the viscosity ratio k between the two fluids. We characterize the particle dynamics by applying a constant pulling force along the interface and measure both the translational and the rotational dynamics as a function of the contact angle and the viscosity ratio. We observe that the hydrodynamic drag is reduced and the particle rotation is increased when the particle resides more in the low viscosity fluid, in agreement with previous hydrodynamic theories. We also study the case where the particle rotation is suppressed, and find an overall increase of the drag coefficient.
dc.description.sponsorshipElectrodynamical diffuse layers - ANR-19-CE30-0012
dc.description.sponsorshipGuidage des particules artificielles auto-propulsées - ANR-19-CE06-0012
dc.language.isoen
dc.publisherAmerican Institute of Physics
dc.subject.enColloidal particle
dc.subject.encontact angle
dc.subject.enwetting
dc.subject.enLattice-Boltzmann Method (LBM)
dc.subject.endrag force
dc.subject.entorque
dc.title.enDynamics of a spherical colloid at a liquid interface: A lattice Boltzmann study
dc.typeArticle de revue
dc.identifier.doi10.1063/5.0047530
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]
bordeaux.journalPhysics of Fluids
bordeaux.peerReviewedoui
hal.identifierhal-03224088
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03224088v1
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