A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement

Autores
Cantero, Mariano Ignacio; Balachandar, S.; Cantelli, Alessandro; Parker, Gary
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Turbidity currents traversing canyon-fan systems flow over bed slopes that decrease in the downstream direction. This slope decrease eventually causes turbidity currents to decelerate and enter a net-depositional mode. When the slope decrease is relatively rapid in the downstream direction, the turbidity current undergoes a concomitantly rapid and substantial transition. Similar conditions are found when turbidity currents debouch to fan systems with loss of lateral confinement. In this work a simplified approach to perform direct numerical simulation (DNS) of continuous turbidity currents undergoing slope breaks and loss of lateral confinement is presented and applied to study turbulence modulation in the flow. The presence of settling sediment particles breaks the top-bottom symmetry of the flow, with a tendency to self-stratify. This self-stratification damps turbulence, particularly near the bottom wall, affecting substantially the flow?s ability to transport sediment in suspension. This work reports results on two different situations: turbidity currents driven by fine and coarser sediment flowing through a decreasing slope. In the case of fine sediment, after the reduction in the slope of the channel, the flow remains turbulent with only a modest influence on turbulence statistics. In the case of coarse sediments, after the change in slope, turbulence is totally suppressed.
Fil: Cantero, Mariano Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Balachandar, S.. University of Florida; Estados Unidos
Fil: Cantelli, Alessandro. Shell International Exploration And Production; Estados Unidos
Fil: Parker, Gary. University Of Illinois At Urbana; Estados Unidos
Materia
Turbidity Currents
Turbulence Modulation
Sediment Transport
Direct Numerical Simulation
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:11336/27551
Acceder
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network_name_str CONICET Digital (CONICET)
spelling A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinementCantero, Mariano IgnacioBalachandar, S.Cantelli, AlessandroParker, GaryTurbidity CurrentsTurbulence ModulationSediment TransportDirect Numerical SimulationTurbidity currents traversing canyon-fan systems flow over bed slopes that decrease in the downstream direction. This slope decrease eventually causes turbidity currents to decelerate and enter a net-depositional mode. When the slope decrease is relatively rapid in the downstream direction, the turbidity current undergoes a concomitantly rapid and substantial transition. Similar conditions are found when turbidity currents debouch to fan systems with loss of lateral confinement. In this work a simplified approach to perform direct numerical simulation (DNS) of continuous turbidity currents undergoing slope breaks and loss of lateral confinement is presented and applied to study turbulence modulation in the flow. The presence of settling sediment particles breaks the top-bottom symmetry of the flow, with a tendency to self-stratify. This self-stratification damps turbulence, particularly near the bottom wall, affecting substantially the flow?s ability to transport sediment in suspension. This work reports results on two different situations: turbidity currents driven by fine and coarser sediment flowing through a decreasing slope. In the case of fine sediment, after the reduction in the slope of the channel, the flow remains turbulent with only a modest influence on turbulence statistics. In the case of coarse sediments, after the change in slope, turbulence is totally suppressed.Fil: Cantero, Mariano Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Balachandar, S.. University of Florida; Estados UnidosFil: Cantelli, Alessandro. Shell International Exploration And Production; Estados UnidosFil: Parker, Gary. University Of Illinois At Urbana; Estados UnidosSpringer2014-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/27551Cantero, Mariano Ignacio; Balachandar, S.; Cantelli, Alessandro; Parker, Gary; A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement; Springer; Environmental Fluid Mechanics; 14; 2; 1-4-2014; 371-3851567-7419CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s10652-013-9302-7info:eu-repo/semantics/altIdentifier/doi/10.1007/s10652-013-9302-7info:eu-repo/semantics/altIdentifier/url/https://experts.illinois.edu/en/publications/a-simplified-approach-to-address-turbulence-modulation-in-turbidiinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:43:11Zoai:ri.conicet.gov.ar:11336/27551instacron: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:34982025-09-29 10:43:11.478CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement
title A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement
spellingShingle A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement
Cantero, Mariano Ignacio
Turbidity Currents
Turbulence Modulation
Sediment Transport
Direct Numerical Simulation
title_short A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement
title_full A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement
title_fullStr A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement
title_full_unstemmed A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement
title_sort A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement
dc.creator.none.fl_str_mv Cantero, Mariano Ignacio
Balachandar, S.
Cantelli, Alessandro
Parker, Gary
author Cantero, Mariano Ignacio
author_facet Cantero, Mariano Ignacio
Balachandar, S.
Cantelli, Alessandro
Parker, Gary
author_role author
author2 Balachandar, S.
Cantelli, Alessandro
Parker, Gary
author2_role author
author
author
dc.subject.none.fl_str_mv Turbidity Currents
Turbulence Modulation
Sediment Transport
Direct Numerical Simulation
topic Turbidity Currents
Turbulence Modulation
Sediment Transport
Direct Numerical Simulation
dc.description.none.fl_txt_mv Turbidity currents traversing canyon-fan systems flow over bed slopes that decrease in the downstream direction. This slope decrease eventually causes turbidity currents to decelerate and enter a net-depositional mode. When the slope decrease is relatively rapid in the downstream direction, the turbidity current undergoes a concomitantly rapid and substantial transition. Similar conditions are found when turbidity currents debouch to fan systems with loss of lateral confinement. In this work a simplified approach to perform direct numerical simulation (DNS) of continuous turbidity currents undergoing slope breaks and loss of lateral confinement is presented and applied to study turbulence modulation in the flow. The presence of settling sediment particles breaks the top-bottom symmetry of the flow, with a tendency to self-stratify. This self-stratification damps turbulence, particularly near the bottom wall, affecting substantially the flow?s ability to transport sediment in suspension. This work reports results on two different situations: turbidity currents driven by fine and coarser sediment flowing through a decreasing slope. In the case of fine sediment, after the reduction in the slope of the channel, the flow remains turbulent with only a modest influence on turbulence statistics. In the case of coarse sediments, after the change in slope, turbulence is totally suppressed.
Fil: Cantero, Mariano Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Balachandar, S.. University of Florida; Estados Unidos
Fil: Cantelli, Alessandro. Shell International Exploration And Production; Estados Unidos
Fil: Parker, Gary. University Of Illinois At Urbana; Estados Unidos
description Turbidity currents traversing canyon-fan systems flow over bed slopes that decrease in the downstream direction. This slope decrease eventually causes turbidity currents to decelerate and enter a net-depositional mode. When the slope decrease is relatively rapid in the downstream direction, the turbidity current undergoes a concomitantly rapid and substantial transition. Similar conditions are found when turbidity currents debouch to fan systems with loss of lateral confinement. In this work a simplified approach to perform direct numerical simulation (DNS) of continuous turbidity currents undergoing slope breaks and loss of lateral confinement is presented and applied to study turbulence modulation in the flow. The presence of settling sediment particles breaks the top-bottom symmetry of the flow, with a tendency to self-stratify. This self-stratification damps turbulence, particularly near the bottom wall, affecting substantially the flow?s ability to transport sediment in suspension. This work reports results on two different situations: turbidity currents driven by fine and coarser sediment flowing through a decreasing slope. In the case of fine sediment, after the reduction in the slope of the channel, the flow remains turbulent with only a modest influence on turbulence statistics. In the case of coarse sediments, after the change in slope, turbulence is totally suppressed.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-01
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/11336/27551
Cantero, Mariano Ignacio; Balachandar, S.; Cantelli, Alessandro; Parker, Gary; A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement; Springer; Environmental Fluid Mechanics; 14; 2; 1-4-2014; 371-385
1567-7419
CONICET Digital
CONICET
url http://hdl.handle.net/11336/27551
identifier_str_mv Cantero, Mariano Ignacio; Balachandar, S.; Cantelli, Alessandro; Parker, Gary; A simplified approach to address turbulence modulation in turbidity currents as a response to slope breaks and loss of lateral confinement; Springer; Environmental Fluid Mechanics; 14; 2; 1-4-2014; 371-385
1567-7419
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s10652-013-9302-7
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10652-013-9302-7
info:eu-repo/semantics/altIdentifier/url/https://experts.illinois.edu/en/publications/a-simplified-approach-to-address-turbulence-modulation-in-turbidi
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 Springer
publisher.none.fl_str_mv Springer
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 13.070432

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