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hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
hal.structure.identifierState Key Laboratory for Turbulence and Complex Systems [Beijing]
dc.contributor.authorSHEN, Zaiyi
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorLINTUVUORI, Juho S.
dc.date.issued2023
dc.identifier.issn0031-9007
dc.description.abstractEnHydrodynamic interactions can give rise to a collective motion of rotating particles. This, in turn, can lead to coherent fluid flows. Using large scale hydrodynamic simulations, we study the coupling between these two in spinner monolayers at weakly inertial regime. We observe an instability, where the initially uniform particle layer separates into particle void and particle rich areas. The particle void region corresponds to a fluid vortex, and it is driven by a surrounding spinner edge current. We show that the instability originates from a hydrodynamic lift force between the particle and fluid flows. The cavitation can be tuned by the strength of the collective flows. It is suppressed when the spinners are confined by a no-slip surface, and multiple cavity and oscillating cavity states are observed when the particle concentration is reduced.
dc.description.sponsorshipGuidage des particules artificielles auto-propulsées - ANR-19-CE06-0012
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enCollective Flows Drive Cavitation in Spinner Monolayers
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevLett.130.188202
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
dc.identifier.arxiv2308.11280
bordeaux.journalPhysical Review Letters
bordeaux.page188202
bordeaux.volume130
bordeaux.issue18
bordeaux.peerReviewedoui
hal.identifierhal-04186214
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04186214v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20Letters&rft.date=2023&rft.volume=130&rft.issue=18&rft.spage=188202&rft.epage=188202&rft.eissn=0031-9007&rft.issn=0031-9007&rft.au=SHEN,%20Zaiyi&LINTUVUORI,%20Juho%20S.&rft.genre=article


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