Passive scalar cascades in rotating helical and non-helical flows

dc.creatorRodriguez Imazio, Paola Carolina
dc.creatorMininni, Pablo Daniel
dc.date.accessioned2015-10-13T21:11:59Z
dc.date.available2015-10-13T21:11:59Z
dc.date.created2015-10-13T21:11:59Z
dc.date.issued2013-07
dc.identifierRodriguez Imazio, Paola Carolina; Mininni, Pablo Daniel; Passive scalar cascades in rotating helical and non-helical flows; IOP Publishing; Physica Scripta; 2013; T155; 7-2013; 14037-14037
dc.identifier0031-8949
dc.identifierhttp://hdl.handle.net/11336/2517
dc.description.abstractWe study how helicity affects the spectrum of a passive scalar in rotating turbulent flows, using numerical simulations of turbulent flows with or without rotation and with or without injection of helicity. Scaling laws for energy and passive scalar spectra in the direction perpendicular to the rotation axis differ in rotating helical flows from those found in the non-helical case, with the spectrum of passive scalar variance in the former case being shallower than in the latter. A simple phenomenological model that links the effects of helicity on the energy spectrum with the passive scalar spectrum is presented.
dc.languageeng
dc.publisherIOP Publishing
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://arxiv.org/abs/1207.7027
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/0031-8949/2013/T155/014037
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0031-8949/2013/T155/014037/meta
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectRotating Flows
dc.subjectSwirling Flows
dc.subjectHelicity
dc.subjectPassive Scalar
dc.titlePassive scalar cascades in rotating helical and non-helical flows
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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