Effective diffusivity of passive scalars in rotating turbulence | ||
| dc.conicet.organizacion | ORGANIZACIONES | es |
| dc.conicet.organizacion | Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires | es |
| dc.conicet.organizacion | National Center for Atmospheric Research; Estados Unidos de América | es |
| dc.conicet.organizacion | ORGANIZACIONES | es |
| dc.conicet.organizacion | Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires | es |
| dc.conicet.organizacion | National Center for Atmospheric Research; Estados Unidos de América | es |
| dc.conicet.organizacion | ORGANIZACIONES | es |
| dc.conicet.paisOrganizacion | Argentina | |
| dc.conicet.produccionid | 2784816 | |
| dc.contributor.author | Rodriguez Imazio, Paola Carolina | es |
| dc.contributor.author | Mininni, Pablo Daniel | es |
| dc.date.accessioned | 2015-06-09T18:03:43Z | |
| dc.date.available | 2015-06-09T18:03:43Z | |
| dc.date.issued | 2013-02-25 | |
| dc.date.updated | 2016-03-30 10:35:44.97925-03 | |
| dc.description.abstract | We use direct numerical simulations to compute turbulent transport coefficients for passive scalars in turbulent rotating flows. Effective diffusion coefficients in the directions parallel and perpendicular to the rotation axis are obtained by studying the diffusion of an imposed initial profile for the passive scalar, and calculated by measuring the scalar average concentration and average spatial flux as a function of time. The Rossby and Schmidt numbers are varied to quantify their effect on the effective diffusion. It is found that rotation reduces scalar diffusivity in the perpendicular direction. The perpendicular diffusion can be estimated from mixing length arguments using the characteristic velocities and lengths perpendicular to the rotation axis. Deviations are observed for small Schmidt numbers, for which turbulent transport decreases and molecular diffusion becomes more significant. | es |
| dc.description.fil | Fil: Rodriguez Imazio, Paola Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina; National Center for Atmospheric Research; Estados Unidos de América; | |
| dc.description.fil | Fil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina; National Center for Atmospheric Research; Estados Unidos de América; | |
| dc.format | application/pdf | es |
| dc.identifier.citation | Rodriguez Imazio, Paola Carolina; Mininni, Pablo Daniel; Effective diffusivity of passive scalars in rotating turbulence; Amer Physical Soc; Physical Review E; 87; 2; 25-2-2013; 023018(9); | es |
| dc.identifier.issn | 1539-3755 | |
| dc.identifier.uri | http://hdl.handle.net/11336/652 | |
| dc.journal.ciudad | New York | es |
| dc.journal.number | 2 | es |
| dc.journal.pagination | 023018(9) | es |
| dc.journal.pais | Estados Unidos | es |
| dc.journal.title | Physical Review E | es |
| dc.journal.volume | 87 | es |
| dc.language.iso | eng | es |
| dc.publisher | Amer Physical Soc | es |
| dc.relation.alternativeid | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevE.87.023018 | |
| dc.rights | info:eu-repo/semantics/openAccess | es |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | es |
| dc.subject | Rotating Flows | es |
| dc.subject | Swirling Flows | es |
| dc.subject | Passive Scalar | es |
| dc.subject | Turbulent Diffusion | es |
| dc.subject.classification | Ciencias Naturales y Exactas | es |
| dc.subject.classification | Ciencias Físicas | es |
| dc.subject.classification | Física de Los Fluidos y Plasma | es |
| dc.title | Effective diffusivity of passive scalars in rotating turbulence | es |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:ar-repo/semantics/artículo | |
| dc.type | info:eu-repo/semantics/publishedVersion | |