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dc.contributor.authorCALTAGIRONE, Jean-Paul
hal.structure.identifierLaboratoire Modélisation et Simulation Multi-Echelle [MSME]
dc.contributor.authorVINCENT, Stéphane
dc.date.accessioned2021-05-14T09:34:59Z
dc.date.available2021-05-14T09:34:59Z
dc.date.issued2019
dc.identifier.issn2514-4642
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/76173
dc.description.abstractEnThe discrete mechanics formalism and equations are considered in the present work in order to establish the role played by representative motion equations on the study of turbulence in fluids. In particular, a set of differences related to the turbulent pressure, the dynamics of vorticity in two spatial dimensions, the turbulent dissipation or the divergence of acceleration are discussed compared to the classical continuous media and Navier-Stokes equations. A second part is devoted to presenting on a first example, the rigid rotational motion, the differences between discrete and continuum mechanics. A last section is devoted to simulating the turbulent channel flow at turbulent Reynolds number of Reτ = 590. It is demonstrated that discrete mechanics allow to recover accurately the mean velocity profiles of reference DNS and also to provide scale laws of the whole mean velocity profile from the wall to the center of the channel.
dc.language.isoen
dc.publisherISTE OpenScience
dc.subject.enDiscrete Mechanics
dc.subject.enHodge-Helmholtz decomposition
dc.subject.enLamb vector
dc.subject.enTurbulent channel flow
dc.subject.enLaw of the wall
dc.subject.enDynamics of the vorticity
dc.subject.enTurbulent dissipation
dc.titleQuelques aspects de la turbulence en mécanique discrète
dc.title.enSome aspects of turbulence in discrete mechanics
dc.typeArticle de revue
dc.identifier.doi10.21494/ISTE.OP.2019.0328
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des fluides [physics.class-ph]
bordeaux.journalThermodynamique des interfaces et mécanique des fluides
bordeaux.page1-26
bordeaux.volume3
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.issue1
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-02657362
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02657362v1
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