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hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorBOT, Patrick B.
hal.structure.identifierFluides, automatique, systèmes thermiques [FAST]
dc.contributor.authorRABAUD, Marc
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorTHOMAS, Goulven
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorLOMBARDI, Alessandro
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorLEBRET, Charles
dc.date.accessioned2021-05-14T09:52:18Z
dc.date.available2021-05-14T09:52:18Z
dc.date.issued2016
dc.identifier.issn0031-9007
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/77438
dc.description.abstractEnBluff bodies moving in a fluid experience a drag force which usually increases with velocity. However in a particular velocity range a drag crisis is observed, i.e., a sharp and strong decrease of the drag force. This counterintuitive result is well characterized for a sphere or a cylinder. Here we show that, for an object breaking the up-down symmetry, a lift crisis is observed simultaneously to the drag crisis. The term lift crisis refers to the fact that at constant incidence the time-averaged transverse force, which remains small or even negative at low velocity, transitions abruptly to large positive values above a critical flow velocity. This transition is characterized from direct force measurements as well as from change in the velocity field around the obstacle.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.subject.enLift Crisis
dc.subject.endrag crisis
dc.subject.ennonsymmetrical obstacles
dc.title.enSharp Transition in the Lift Force of a Fluid Flowing Past Nonsymmetrical Obstacles: Evidence for a Lift Crisis in the Drag Crisis Regime
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevLett.117.234501
dc.subject.halPhysique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn]
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des fluides [physics.class-ph]
bordeaux.journalPhysical Review Letters
bordeaux.page234501
bordeaux.volume117
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.issue23
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-01410405
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01410405v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20Letters&rft.date=2016&rft.volume=117&rft.issue=23&rft.spage=234501&rft.epage=234501&rft.eissn=0031-9007&rft.issn=0031-9007&rft.au=BOT,%20Patrick%20B.&RABAUD,%20Marc&THOMAS,%20Goulven&LOMBARDI,%20Alessandro&LEBRET,%20Charles&rft.genre=article


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