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dc.contributor.author
Pouquet, Annick
dc.contributor.author
Rosenberg, Duane
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dc.contributor.author
Marino, Raffaele
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dc.contributor.author
Mininni, Pablo Daniel
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dc.date.available
2024-06-14T10:45:22Z
dc.date.issued
2023-08
dc.identifier.citation
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
dc.identifier.issn
2073-4433
dc.identifier.uri
http://hdl.handle.net/11336/238108
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
MDPI
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
ATMOSPHERIC FLOWS
dc.subject
ROTATION
dc.subject
STRATIFICATION
dc.subject.classification
Física de los Fluidos y Plasma
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-06-13T11:19:09Z
dc.journal.volume
14
dc.journal.number
9
dc.journal.pagination
1-21
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Pouquet, Annick. National Center for Atmospheric Research; Estados Unidos. University of Colorado; Estados Unidos
dc.description.fil
Fil: Rosenberg, Duane. No especifíca;
dc.description.fil
Fil: Marino, Raffaele. Centre National de la Recherche Scientifique; Francia
dc.description.fil
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
dc.journal.title
Atmosphere
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4433/14/9/1375
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/atmos14091375
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