Capillary-lubrication force exerted on a 2D particle moving towards a fluid interface
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | JHA, Aditya | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | AMAROUCHENE, Yacine | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | SALEZ, Thomas | |
| dc.date.issued | 2023 | |
| dc.identifier.issn | 0022-1120 | |
| dc.description.abstractEn | A rigid object moving in a viscous fluid and in close proximity with an elastic wall experiences self-generated elastohydrodynamic interactions. This has been the subject of an intense research activity, with a recent and growing attention given to the particular case of elastomeric and gel-like substrates. Here, we address the situation where the elastic wall is replaced by a capillary surface. Specifically, we analyze the lubrication flow generated by the prescribed normal motion of a rigid infinite cylinder near the deformable interface separating two immiscible and incompressible viscous fluids. Using a combination of analytical and numerical treatments, we compute the emergent capillary-lubrication force at leading order in compliance, and characterize its dependencies with the interfacial tension, viscosities of the fluids, and length scales of the problem. Interestingly, we identify two main contributions: i) a velocity-dependent adhesion-like force ; ii) an acceleration-dependant inertial-like force. Our results may have implications for the mobility of colloids near complex interfaces and for the motility of confined microbiological entities. | |
| dc.description.sponsorship | Capteur Interférométrique de Contraintes de Surface - ANR-21-CE06-0029 | |
| dc.description.sponsorship | Mouvement brownien au voisinage d'interfaces molles - ANR-21-ERCC-0010 | |
| dc.description.sponsorship | Frottements dans les systèmes complexes - ANR-21-CE06-0039 | |
| dc.language.iso | en | |
| dc.publisher | Cambridge University Press (CUP) | |
| dc.title.en | Capillary-lubrication force exerted on a 2D particle moving towards a fluid interface | |
| dc.type | Article de revue | |
| dc.subject.hal | Physique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph] | |
| dc.subject.hal | Physique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph] | |
| dc.identifier.arxiv | 2307.00013 | |
| dc.description.sponsorshipEurope | Brownian Motion near Soft Interfaces | |
| bordeaux.journal | Journal of Fluid Mechanics | |
| bordeaux.page | A50 | |
| bordeaux.volume | 977 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-04136811 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-04136811v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Fluid%20Mechanics&rft.date=2023&rft.volume=977&rft.spage=A50&rft.epage=A50&rft.eissn=0022-1120&rft.issn=0022-1120&rft.au=JHA,%20Aditya&AMAROUCHENE,%20Yacine&SALEZ,%20Thomas&rft.genre=article |
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