Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability

Autores
Pouquet, Annick; Rosenberg, Duane; Marino, Raffaele; Mininni, Pablo Daniel
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Many issues pioneered by Jackson Herring deal with how nonlinear interactions shape atmospheric dynamics. In this context, we analyze new direct numerical simulations of rotating stratified flows with a large-scale forcing, which is either random or quasi-geostrophic (QG). Runs were performed at a moderate Reynolds number Re and up to 1646 turn-over times in one case. We found intermittent fluctuations of the vertical velocity w and temperature θ in a narrow domain of parameters as for decaying flows. Preliminary results indicate that parabolic relations between normalized third- and fourth-order moments of the buoyancy flux ∝ hwθi and of the energy dissipation emerge in this domain, including for passive and active scalars, with or without rotation. These are reminiscent of (but not identical to) previous findings for other variables and systems such as oceanic and atmospheric flows, climate re-analysis data, fusion plasmas, the Solar Wind, or galaxies. For QG forcing, sharp scaling transitions take place once the Ozmidov length scale `Oz is resolved—`Oz being the scale after which a turbulent Kolmogorov energy spectrum likely recovers at high Re.
Fil: Pouquet, Annick. National Center for Atmospheric Research; Estados Unidos. University of Colorado; Estados Unidos
Fil: Rosenberg, Duane. No especifíca;
Fil: Marino, Raffaele. Centre National de la Recherche Scientifique; Francia
Fil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
Materia
ATMOSPHERIC FLOWS
ROTATION
STRATIFICATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/238108
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of InstabilityPouquet, AnnickRosenberg, DuaneMarino, RaffaeleMininni, Pablo DanielATMOSPHERIC FLOWSROTATIONSTRATIFICATIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Many issues pioneered by Jackson Herring deal with how nonlinear interactions shape atmospheric dynamics. In this context, we analyze new direct numerical simulations of rotating stratified flows with a large-scale forcing, which is either random or quasi-geostrophic (QG). Runs were performed at a moderate Reynolds number Re and up to 1646 turn-over times in one case. We found intermittent fluctuations of the vertical velocity w and temperature θ in a narrow domain of parameters as for decaying flows. Preliminary results indicate that parabolic relations between normalized third- and fourth-order moments of the buoyancy flux ∝ hwθi and of the energy dissipation emerge in this domain, including for passive and active scalars, with or without rotation. These are reminiscent of (but not identical to) previous findings for other variables and systems such as oceanic and atmospheric flows, climate re-analysis data, fusion plasmas, the Solar Wind, or galaxies. For QG forcing, sharp scaling transitions take place once the Ozmidov length scale `Oz is resolved—`Oz being the scale after which a turbulent Kolmogorov energy spectrum likely recovers at high Re.Fil: Pouquet, Annick. National Center for Atmospheric Research; Estados Unidos. University of Colorado; Estados UnidosFil: Rosenberg, Duane. No especifíca;Fil: Marino, Raffaele. Centre National de la Recherche Scientifique; FranciaFil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; ArgentinaMDPI2023-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/238108Pouquet, Annick; Rosenberg, Duane; Marino, Raffaele; Mininni, Pablo Daniel; Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability; MDPI; Atmosphere; 14; 9; 8-2023; 1-212073-4433CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4433/14/9/1375info:eu-repo/semantics/altIdentifier/doi/10.3390/atmos14091375info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:03:02Zoai:ri.conicet.gov.ar:11336/238108instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:03:02.814CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability
title Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability
spellingShingle Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability
Pouquet, Annick
ATMOSPHERIC FLOWS
ROTATION
STRATIFICATION
title_short Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability
title_full Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability
title_fullStr Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability
title_full_unstemmed Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability
title_sort Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability
dc.creator.none.fl_str_mv Pouquet, Annick
Rosenberg, Duane
Marino, Raffaele
Mininni, Pablo Daniel
author Pouquet, Annick
author_facet Pouquet, Annick
Rosenberg, Duane
Marino, Raffaele
Mininni, Pablo Daniel
author_role author
author2 Rosenberg, Duane
Marino, Raffaele
Mininni, Pablo Daniel
author2_role author
author
author
dc.subject.none.fl_str_mv ATMOSPHERIC FLOWS
ROTATION
STRATIFICATION
topic ATMOSPHERIC FLOWS
ROTATION
STRATIFICATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Many issues pioneered by Jackson Herring deal with how nonlinear interactions shape atmospheric dynamics. In this context, we analyze new direct numerical simulations of rotating stratified flows with a large-scale forcing, which is either random or quasi-geostrophic (QG). Runs were performed at a moderate Reynolds number Re and up to 1646 turn-over times in one case. We found intermittent fluctuations of the vertical velocity w and temperature θ in a narrow domain of parameters as for decaying flows. Preliminary results indicate that parabolic relations between normalized third- and fourth-order moments of the buoyancy flux ∝ hwθi and of the energy dissipation emerge in this domain, including for passive and active scalars, with or without rotation. These are reminiscent of (but not identical to) previous findings for other variables and systems such as oceanic and atmospheric flows, climate re-analysis data, fusion plasmas, the Solar Wind, or galaxies. For QG forcing, sharp scaling transitions take place once the Ozmidov length scale `Oz is resolved—`Oz being the scale after which a turbulent Kolmogorov energy spectrum likely recovers at high Re.
Fil: Pouquet, Annick. National Center for Atmospheric Research; Estados Unidos. University of Colorado; Estados Unidos
Fil: Rosenberg, Duane. No especifíca;
Fil: Marino, Raffaele. Centre National de la Recherche Scientifique; Francia
Fil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
description Many issues pioneered by Jackson Herring deal with how nonlinear interactions shape atmospheric dynamics. In this context, we analyze new direct numerical simulations of rotating stratified flows with a large-scale forcing, which is either random or quasi-geostrophic (QG). Runs were performed at a moderate Reynolds number Re and up to 1646 turn-over times in one case. We found intermittent fluctuations of the vertical velocity w and temperature θ in a narrow domain of parameters as for decaying flows. Preliminary results indicate that parabolic relations between normalized third- and fourth-order moments of the buoyancy flux ∝ hwθi and of the energy dissipation emerge in this domain, including for passive and active scalars, with or without rotation. These are reminiscent of (but not identical to) previous findings for other variables and systems such as oceanic and atmospheric flows, climate re-analysis data, fusion plasmas, the Solar Wind, or galaxies. For QG forcing, sharp scaling transitions take place once the Ozmidov length scale `Oz is resolved—`Oz being the scale after which a turbulent Kolmogorov energy spectrum likely recovers at high Re.
publishDate 2023
dc.date.none.fl_str_mv 2023-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/238108
Pouquet, Annick; Rosenberg, Duane; Marino, Raffaele; Mininni, Pablo Daniel; Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability; MDPI; Atmosphere; 14; 9; 8-2023; 1-21
2073-4433
CONICET Digital
CONICET
url http://hdl.handle.net/11336/238108
identifier_str_mv Pouquet, Annick; Rosenberg, Duane; Marino, Raffaele; Mininni, Pablo Daniel; Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability; MDPI; Atmosphere; 14; 9; 8-2023; 1-21
2073-4433
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4433/14/9/1375
info:eu-repo/semantics/altIdentifier/doi/10.3390/atmos14091375
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.993085

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