Sharp Transition in the Lift Force of a Fluid Flowing Past Nonsymmetrical Obstacles: Evidence for a Lift Crisis in the Drag Crisis Regime
| hal.structure.identifier | Institut de Recherche de l'Ecole Navale [IRENAV] | |
| dc.contributor.author | BOT, Patrick B. | |
| hal.structure.identifier | Fluides, automatique, systèmes thermiques [FAST] | |
| dc.contributor.author | RABAUD, Marc | |
| hal.structure.identifier | Institut de Recherche de l'Ecole Navale [IRENAV] | |
| dc.contributor.author | THOMAS, Goulven | |
| hal.structure.identifier | Institut de Recherche de l'Ecole Navale [IRENAV] | |
| dc.contributor.author | LOMBARDI, Alessandro | |
| hal.structure.identifier | Institut de Recherche de l'Ecole Navale [IRENAV] | |
| dc.contributor.author | LEBRET, Charles | |
| dc.date.accessioned | 2021-05-14T09:52:18Z | |
| dc.date.available | 2021-05-14T09:52:18Z | |
| dc.date.issued | 2016 | |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/77438 | |
| dc.description.abstractEn | Bluff 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.iso | en | |
| dc.publisher | American Physical Society | |
| dc.subject.en | Lift Crisis | |
| dc.subject.en | drag crisis | |
| dc.subject.en | nonsymmetrical obstacles | |
| dc.title.en | Sharp Transition in the Lift Force of a Fluid Flowing Past Nonsymmetrical Obstacles: Evidence for a Lift Crisis in the Drag Crisis Regime | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PhysRevLett.117.234501 | |
| dc.subject.hal | Physique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn] | |
| dc.subject.hal | Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des fluides [physics.class-ph] | |
| bordeaux.journal | Physical Review Letters | |
| bordeaux.page | 234501 | |
| bordeaux.volume | 117 | |
| bordeaux.hal.laboratories | Institut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295 | * |
| bordeaux.issue | 23 | |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.institution | Bordeaux INP | |
| bordeaux.institution | CNRS | |
| bordeaux.institution | INRAE | |
| bordeaux.institution | Arts et Métiers | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01410405 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01410405v1 | |
| bordeaux.COinS | ctx_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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