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Random vectorial fields representing the local structure of turbulence

dc.contributor.authorChevillard, Laurent
HAL ID: 5342
dc.contributor.authorRobert, Raoul
dc.contributor.authorVargas, Vincent
HAL ID: 739861
dc.date.accessioned2013-10-16T13:35:39Z
dc.date.available2013-10-16T13:35:39Z
dc.date.issued2011
dc.identifier.urihttps://basepub.dauphine.fr/handle/123456789/11858
dc.language.isoenen
dc.subjectvelocity fielden
dc.subject.ddc520en
dc.titleRandom vectorial fields representing the local structure of turbulenceen
dc.typeCommunication / Conférence
dc.description.abstractenWe propose a method to build up a random homogeneous, isotropic and incompressible turbulent velocity field that mimics turbulence in the inertial range. The underlying Gaussian field is given by a modified Biot-Savart law. The long range correlated nature of turbulence is then incorporated heuristically using a non linear transformation inspired by the recent fluid deformation imposed by the Euler equations. The resulting velocity field shows a non vanishing mean energy transfer towards the small scales and realistic alignment properties of vorticity with the eigenframe of the deformation rate.en
dc.relation.isversionofjnlnameJournal of Physics: Conference Series
dc.relation.isversionofjnlvol318en
dc.relation.isversionofjnlissue4en
dc.relation.isversionofjnldate2011
dc.relation.isversionofjnlpagesn° 42002en
dc.relation.isversionofdoihttp://dx.doi.org/10.1088/1742-6596/318/4/042002en
dc.relation.isversionofjnlpublisherIOPen
dc.subject.ddclabelSciences connexes (physique, astrophysique)en
dc.relation.conftitle13th European Turbulence Conference (ETC13)
dc.relation.confdate2011-09
dc.relation.confcityVarsovie
dc.relation.confcountryPologne
dc.relation.forthcomingnonen
dc.relation.forthcomingprintnonen


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