Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layer

Autores
Salinas, Jorge Sebastián; Balachandar, S.; Shringarpure, M.; Fedele, J.; Hoyal, D.; Zúñiga, Santiago Luciano; Cantero, Mariano Ignacio
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Turbidity currents are sediment-laden flows that travel over a sloping bed under a stagnant ambient fluid, driven by the density difference between the current and the ambient. Turbidity currents transport large amounts of carbon, nutrients and fresh water through oceans and play an important role in global geochemical cycling and seafloor ecosystems. Supercritical currents are observed in steeper slopes. Subcritical currents are observed in milder slopes, where the near-bed and interface layers are prevented from interacting across the velocity maximum. Past works show the existence of such a barrier to vertical momentum transfer is essential for the body of the subcritical current to extend over hundreds of kilometers in length without much increase in height. Here we observe the body of subcritical currents to have a three layer structure, where the turbulent near-bed layer and the non-turbulent interface layer are separated by an intermediate layer of negative turbulence production. We explain the mechanism by which this layer prevents the near-bed turbulent structures from penetrating into the interface layer by transferring energy back from turbulence to the mean flow.
Fil: Salinas, Jorge Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. University of Florida; Estados Unidos
Fil: Balachandar, S.. University of Florida; Estados Unidos
Fil: Shringarpure, M.. No especifíca;
Fil: Fedele, J.. No especifíca;
Fil: Hoyal, D.. No especifíca;
Fil: Zúñiga, Santiago Luciano. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Cantero, Mariano Ignacio. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Materia
turbid underflow
turbidity current
gravity current
turbulence
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:11336/167505
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layerSalinas, Jorge SebastiánBalachandar, S.Shringarpure, M.Fedele, J.Hoyal, D.Zúñiga, Santiago LucianoCantero, Mariano Ignacioturbid underflowturbidity currentgravity currentturbulencehttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Turbidity currents are sediment-laden flows that travel over a sloping bed under a stagnant ambient fluid, driven by the density difference between the current and the ambient. Turbidity currents transport large amounts of carbon, nutrients and fresh water through oceans and play an important role in global geochemical cycling and seafloor ecosystems. Supercritical currents are observed in steeper slopes. Subcritical currents are observed in milder slopes, where the near-bed and interface layers are prevented from interacting across the velocity maximum. Past works show the existence of such a barrier to vertical momentum transfer is essential for the body of the subcritical current to extend over hundreds of kilometers in length without much increase in height. Here we observe the body of subcritical currents to have a three layer structure, where the turbulent near-bed layer and the non-turbulent interface layer are separated by an intermediate layer of negative turbulence production. We explain the mechanism by which this layer prevents the near-bed turbulent structures from penetrating into the interface layer by transferring energy back from turbulence to the mean flow.Fil: Salinas, Jorge Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. University of Florida; Estados UnidosFil: Balachandar, S.. University of Florida; Estados UnidosFil: Shringarpure, M.. No especifíca;Fil: Fedele, J.. No especifíca;Fil: Hoyal, D.. No especifíca;Fil: Zúñiga, Santiago Luciano. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Cantero, Mariano Ignacio. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaNature2021-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/167505Salinas, Jorge Sebastián; Balachandar, S.; Shringarpure, M.; Fedele, J.; Hoyal, D.; et al.; Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layer; Nature; Nature Communications; 12; 1; 12-2021; 1-112041-1723CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-021-21966-yinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:54:31Zoai:ri.conicet.gov.ar:11336/167505instacron: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:34982025-09-03 09:54:31.396CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layer
title Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layer
spellingShingle Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layer
Salinas, Jorge Sebastián
turbid underflow
turbidity current
gravity current
turbulence
title_short Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layer
title_full Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layer
title_fullStr Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layer
title_full_unstemmed Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layer
title_sort Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layer
dc.creator.none.fl_str_mv Salinas, Jorge Sebastián
Balachandar, S.
Shringarpure, M.
Fedele, J.
Hoyal, D.
Zúñiga, Santiago Luciano
Cantero, Mariano Ignacio
author Salinas, Jorge Sebastián
author_facet Salinas, Jorge Sebastián
Balachandar, S.
Shringarpure, M.
Fedele, J.
Hoyal, D.
Zúñiga, Santiago Luciano
Cantero, Mariano Ignacio
author_role author
author2 Balachandar, S.
Shringarpure, M.
Fedele, J.
Hoyal, D.
Zúñiga, Santiago Luciano
Cantero, Mariano Ignacio
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv turbid underflow
turbidity current
gravity current
turbulence
topic turbid underflow
turbidity current
gravity current
turbulence
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Turbidity currents are sediment-laden flows that travel over a sloping bed under a stagnant ambient fluid, driven by the density difference between the current and the ambient. Turbidity currents transport large amounts of carbon, nutrients and fresh water through oceans and play an important role in global geochemical cycling and seafloor ecosystems. Supercritical currents are observed in steeper slopes. Subcritical currents are observed in milder slopes, where the near-bed and interface layers are prevented from interacting across the velocity maximum. Past works show the existence of such a barrier to vertical momentum transfer is essential for the body of the subcritical current to extend over hundreds of kilometers in length without much increase in height. Here we observe the body of subcritical currents to have a three layer structure, where the turbulent near-bed layer and the non-turbulent interface layer are separated by an intermediate layer of negative turbulence production. We explain the mechanism by which this layer prevents the near-bed turbulent structures from penetrating into the interface layer by transferring energy back from turbulence to the mean flow.
Fil: Salinas, Jorge Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. University of Florida; Estados Unidos
Fil: Balachandar, S.. University of Florida; Estados Unidos
Fil: Shringarpure, M.. No especifíca;
Fil: Fedele, J.. No especifíca;
Fil: Hoyal, D.. No especifíca;
Fil: Zúñiga, Santiago Luciano. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Cantero, Mariano Ignacio. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
description Turbidity currents are sediment-laden flows that travel over a sloping bed under a stagnant ambient fluid, driven by the density difference between the current and the ambient. Turbidity currents transport large amounts of carbon, nutrients and fresh water through oceans and play an important role in global geochemical cycling and seafloor ecosystems. Supercritical currents are observed in steeper slopes. Subcritical currents are observed in milder slopes, where the near-bed and interface layers are prevented from interacting across the velocity maximum. Past works show the existence of such a barrier to vertical momentum transfer is essential for the body of the subcritical current to extend over hundreds of kilometers in length without much increase in height. Here we observe the body of subcritical currents to have a three layer structure, where the turbulent near-bed layer and the non-turbulent interface layer are separated by an intermediate layer of negative turbulence production. We explain the mechanism by which this layer prevents the near-bed turbulent structures from penetrating into the interface layer by transferring energy back from turbulence to the mean flow.
publishDate 2021
dc.date.none.fl_str_mv 2021-12
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/11336/167505
Salinas, Jorge Sebastián; Balachandar, S.; Shringarpure, M.; Fedele, J.; Hoyal, D.; et al.; Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layer; Nature; Nature Communications; 12; 1; 12-2021; 1-11
2041-1723
CONICET Digital
CONICET
url http://hdl.handle.net/11336/167505
identifier_str_mv Salinas, Jorge Sebastián; Balachandar, S.; Shringarpure, M.; Fedele, J.; Hoyal, D.; et al.; Anatomy of subcritical submarine flows with a lutocline and an intermediate destruction layer; Nature; Nature Communications; 12; 1; 12-2021; 1-11
2041-1723
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-021-21966-y
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 Nature
publisher.none.fl_str_mv Nature
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
_version_ 1842269290168844288
score 13.13397

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