Control of turbulent transport in supercritical currents by three families of hairpin vortices

Autores
Salinas, Jorge Sebastián; Balachandar, S.; Cantero, Mariano Ignacio
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We elucidate the turbulent structure of supercritical gravity currents by means of highly resolved simulations that employ up to a billion grid points. Three families of hairpin vortices dominate the near-bed and interface layers of the current, with their generation mechanisms dictating their shape, orientation, and number density. The interaction of near-bed and lower-interface hairpins explains the weak inviscid lidlike behavior of the streamwise velocity maximum, while the upper-interface vortices are responsible for the substantially lower entrainment compared to turbulent wall jets.
Fil: Salinas, Jorge Sebastián. University of Florida; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Balachandar, S.. University of Florida; Estados Unidos
Fil: Cantero, Mariano Ignacio. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Materia
GRAVITY CURRENT
TURBULENCE MODELING
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/167557
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Control of turbulent transport in supercritical currents by three families of hairpin vorticesSalinas, Jorge SebastiánBalachandar, S.Cantero, Mariano IgnacioGRAVITY CURRENTTURBULENCE MODELINGhttps://purl.org/becyt/ford/2.3https://purl.org/becyt/ford/2We elucidate the turbulent structure of supercritical gravity currents by means of highly resolved simulations that employ up to a billion grid points. Three families of hairpin vortices dominate the near-bed and interface layers of the current, with their generation mechanisms dictating their shape, orientation, and number density. The interaction of near-bed and lower-interface hairpins explains the weak inviscid lidlike behavior of the streamwise velocity maximum, while the upper-interface vortices are responsible for the substantially lower entrainment compared to turbulent wall jets.Fil: Salinas, Jorge Sebastián. University of Florida; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Balachandar, S.. University of Florida; Estados UnidosFil: Cantero, Mariano Ignacio. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaAmerican Physical Society2021-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/167557Salinas, Jorge Sebastián; Balachandar, S.; Cantero, Mariano Ignacio; Control of turbulent transport in supercritical currents by three families of hairpin vortices; American Physical Society; Physical Review Fluids; 6; 6; 6-2021; 1-52469-990XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevFluids.6.063801info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevFluids.6.063801info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:47:04Zoai:ri.conicet.gov.ar:11336/167557instacron: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:34982025-11-12 09:47:05.049CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Control of turbulent transport in supercritical currents by three families of hairpin vortices
title Control of turbulent transport in supercritical currents by three families of hairpin vortices
spellingShingle Control of turbulent transport in supercritical currents by three families of hairpin vortices
Salinas, Jorge Sebastián
GRAVITY CURRENT
TURBULENCE MODELING
title_short Control of turbulent transport in supercritical currents by three families of hairpin vortices
title_full Control of turbulent transport in supercritical currents by three families of hairpin vortices
title_fullStr Control of turbulent transport in supercritical currents by three families of hairpin vortices
title_full_unstemmed Control of turbulent transport in supercritical currents by three families of hairpin vortices
title_sort Control of turbulent transport in supercritical currents by three families of hairpin vortices
dc.creator.none.fl_str_mv Salinas, Jorge Sebastián
Balachandar, S.
Cantero, Mariano Ignacio
author Salinas, Jorge Sebastián
author_facet Salinas, Jorge Sebastián
Balachandar, S.
Cantero, Mariano Ignacio
author_role author
author2 Balachandar, S.
Cantero, Mariano Ignacio
author2_role author
author
dc.subject.none.fl_str_mv GRAVITY CURRENT
TURBULENCE MODELING
topic GRAVITY CURRENT
TURBULENCE MODELING
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.3
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv We elucidate the turbulent structure of supercritical gravity currents by means of highly resolved simulations that employ up to a billion grid points. Three families of hairpin vortices dominate the near-bed and interface layers of the current, with their generation mechanisms dictating their shape, orientation, and number density. The interaction of near-bed and lower-interface hairpins explains the weak inviscid lidlike behavior of the streamwise velocity maximum, while the upper-interface vortices are responsible for the substantially lower entrainment compared to turbulent wall jets.
Fil: Salinas, Jorge Sebastián. University of Florida; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Balachandar, S.. University of Florida; Estados Unidos
Fil: Cantero, Mariano Ignacio. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
description We elucidate the turbulent structure of supercritical gravity currents by means of highly resolved simulations that employ up to a billion grid points. Three families of hairpin vortices dominate the near-bed and interface layers of the current, with their generation mechanisms dictating their shape, orientation, and number density. The interaction of near-bed and lower-interface hairpins explains the weak inviscid lidlike behavior of the streamwise velocity maximum, while the upper-interface vortices are responsible for the substantially lower entrainment compared to turbulent wall jets.
publishDate 2021
dc.date.none.fl_str_mv 2021-06
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/11336/167557
Salinas, Jorge Sebastián; Balachandar, S.; Cantero, Mariano Ignacio; Control of turbulent transport in supercritical currents by three families of hairpin vortices; American Physical Society; Physical Review Fluids; 6; 6; 6-2021; 1-5
2469-990X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/167557
identifier_str_mv Salinas, Jorge Sebastián; Balachandar, S.; Cantero, Mariano Ignacio; Control of turbulent transport in supercritical currents by three families of hairpin vortices; American Physical Society; Physical Review Fluids; 6; 6; 6-2021; 1-5
2469-990X
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://link.aps.org/doi/10.1103/PhysRevFluids.6.063801
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevFluids.6.063801
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
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_ 1848597926975111168
score 13.24909

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