The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing

Autores
Herrero, Horacio Sebastian Julian; Díaz Lozada, José Manuel; Garcia Rodriguez, Carlos Marcelo; Szupiany, Ricardo Nicolas; Best, James L.; Pagot, Mariana Renee
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The goal of this study is to evaluate the influence of tributary flow density differences on hydrodynamics and mixing at a confluent meander bend. A detailed field characterization is performed using an Acoustic Doppler Current Profiler (ADCP) for quantification of the 3D flow field, flow discharge and bathymetry, as well as CTD measurements (conductivity, temperature, depth) to characterize the patterns of mixing. Satellite images of the confluence taken at complementary times to the field surveys were analyzed to evaluate the confluence hydrodynamics at different flow conditions. The results illustrate the differences in hydrodynamics and mixing length in relation to confluences with equal density tributaries. At low-density differences, and higher discharge ratio (Qr) between the two rivers, the flow is similar to equi-density confluent meander bends. In contrast, at high-density differences (low Qr), the tributary flow is confined to near the confluence but the density difference causes the flow to move across channel. In this case, the density difference causes the lateral spread of the tributary flow to be greater than at a greater Qr when the density difference is less. These results illustrate the potential importance of density differences between tributaries in determining the rate and spatial extent of mixing and sediment dispersal at confluent meander bends.
Fil: Herrero, Horacio Sebastian Julian. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Estudios Tecnológicos Sobre el Agua; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Díaz Lozada, José Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; Argentina
Fil: Garcia Rodriguez, Carlos Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; Argentina
Fil: Szupiany, Ricardo Nicolas. Universidad Nacional del Litoral. Facultad de Ingeniería y Ciencias Hídricas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Best, James L.. University of Illinois at Urbana; Estados Unidos
Fil: Pagot, Mariana Renee. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Hidraulica; Argentina
Materia
EXPERIMENTAL WORK
HYDRODYNAMICS
MIXING
RIVER CONFLUENCE
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:11336/89544
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/89544
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixingHerrero, Horacio Sebastian JulianDíaz Lozada, José ManuelGarcia Rodriguez, Carlos MarceloSzupiany, Ricardo NicolasBest, James L.Pagot, Mariana ReneeEXPERIMENTAL WORKHYDRODYNAMICSMIXINGRIVER CONFLUENCEhttps://purl.org/becyt/ford/2.1https://purl.org/becyt/ford/2The goal of this study is to evaluate the influence of tributary flow density differences on hydrodynamics and mixing at a confluent meander bend. A detailed field characterization is performed using an Acoustic Doppler Current Profiler (ADCP) for quantification of the 3D flow field, flow discharge and bathymetry, as well as CTD measurements (conductivity, temperature, depth) to characterize the patterns of mixing. Satellite images of the confluence taken at complementary times to the field surveys were analyzed to evaluate the confluence hydrodynamics at different flow conditions. The results illustrate the differences in hydrodynamics and mixing length in relation to confluences with equal density tributaries. At low-density differences, and higher discharge ratio (Qr) between the two rivers, the flow is similar to equi-density confluent meander bends. In contrast, at high-density differences (low Qr), the tributary flow is confined to near the confluence but the density difference causes the flow to move across channel. In this case, the density difference causes the lateral spread of the tributary flow to be greater than at a greater Qr when the density difference is less. These results illustrate the potential importance of density differences between tributaries in determining the rate and spatial extent of mixing and sediment dispersal at confluent meander bends.Fil: Herrero, Horacio Sebastian Julian. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Estudios Tecnológicos Sobre el Agua; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaFil: Díaz Lozada, José Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; ArgentinaFil: Garcia Rodriguez, Carlos Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; ArgentinaFil: Szupiany, Ricardo Nicolas. Universidad Nacional del Litoral. Facultad de Ingeniería y Ciencias Hídricas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Best, James L.. University of Illinois at Urbana; Estados UnidosFil: Pagot, Mariana Renee. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Hidraulica; ArgentinaElsevier Science2018-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/89544Herrero, Horacio Sebastian Julian; Díaz Lozada, José Manuel; Garcia Rodriguez, Carlos Marcelo; Szupiany, Ricardo Nicolas; Best, James L.; et al.; The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing; Elsevier Science; Geomorphology; 304; 1-2018; 99-1120169-555XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://linkinghub.elsevier.com/retrieve/pii/S0169555X17305330info:eu-repo/semantics/altIdentifier/doi/10.1016/j.geomorph.2017.12.025info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:57Zoai:ri.conicet.gov.ar:11336/89544instacron: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 09:33:58.135CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing
title The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing
spellingShingle The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing
Herrero, Horacio Sebastian Julian
EXPERIMENTAL WORK
HYDRODYNAMICS
MIXING
RIVER CONFLUENCE
title_short The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing
title_full The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing
title_fullStr The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing
title_full_unstemmed The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing
title_sort The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing
dc.creator.none.fl_str_mv Herrero, Horacio Sebastian Julian
Díaz Lozada, José Manuel
Garcia Rodriguez, Carlos Marcelo
Szupiany, Ricardo Nicolas
Best, James L.
Pagot, Mariana Renee
author Herrero, Horacio Sebastian Julian
author_facet Herrero, Horacio Sebastian Julian
Díaz Lozada, José Manuel
Garcia Rodriguez, Carlos Marcelo
Szupiany, Ricardo Nicolas
Best, James L.
Pagot, Mariana Renee
author_role author
author2 Díaz Lozada, José Manuel
Garcia Rodriguez, Carlos Marcelo
Szupiany, Ricardo Nicolas
Best, James L.
Pagot, Mariana Renee
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv EXPERIMENTAL WORK
HYDRODYNAMICS
MIXING
RIVER CONFLUENCE
topic EXPERIMENTAL WORK
HYDRODYNAMICS
MIXING
RIVER CONFLUENCE
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.1
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The goal of this study is to evaluate the influence of tributary flow density differences on hydrodynamics and mixing at a confluent meander bend. A detailed field characterization is performed using an Acoustic Doppler Current Profiler (ADCP) for quantification of the 3D flow field, flow discharge and bathymetry, as well as CTD measurements (conductivity, temperature, depth) to characterize the patterns of mixing. Satellite images of the confluence taken at complementary times to the field surveys were analyzed to evaluate the confluence hydrodynamics at different flow conditions. The results illustrate the differences in hydrodynamics and mixing length in relation to confluences with equal density tributaries. At low-density differences, and higher discharge ratio (Qr) between the two rivers, the flow is similar to equi-density confluent meander bends. In contrast, at high-density differences (low Qr), the tributary flow is confined to near the confluence but the density difference causes the flow to move across channel. In this case, the density difference causes the lateral spread of the tributary flow to be greater than at a greater Qr when the density difference is less. These results illustrate the potential importance of density differences between tributaries in determining the rate and spatial extent of mixing and sediment dispersal at confluent meander bends.
Fil: Herrero, Horacio Sebastian Julian. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Estudios Tecnológicos Sobre el Agua; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Díaz Lozada, José Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; Argentina
Fil: Garcia Rodriguez, Carlos Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; Argentina
Fil: Szupiany, Ricardo Nicolas. Universidad Nacional del Litoral. Facultad de Ingeniería y Ciencias Hídricas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Best, James L.. University of Illinois at Urbana; Estados Unidos
Fil: Pagot, Mariana Renee. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Hidraulica; Argentina
description The goal of this study is to evaluate the influence of tributary flow density differences on hydrodynamics and mixing at a confluent meander bend. A detailed field characterization is performed using an Acoustic Doppler Current Profiler (ADCP) for quantification of the 3D flow field, flow discharge and bathymetry, as well as CTD measurements (conductivity, temperature, depth) to characterize the patterns of mixing. Satellite images of the confluence taken at complementary times to the field surveys were analyzed to evaluate the confluence hydrodynamics at different flow conditions. The results illustrate the differences in hydrodynamics and mixing length in relation to confluences with equal density tributaries. At low-density differences, and higher discharge ratio (Qr) between the two rivers, the flow is similar to equi-density confluent meander bends. In contrast, at high-density differences (low Qr), the tributary flow is confined to near the confluence but the density difference causes the flow to move across channel. In this case, the density difference causes the lateral spread of the tributary flow to be greater than at a greater Qr when the density difference is less. These results illustrate the potential importance of density differences between tributaries in determining the rate and spatial extent of mixing and sediment dispersal at confluent meander bends.
publishDate 2018
dc.date.none.fl_str_mv 2018-01
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/11336/89544
Herrero, Horacio Sebastian Julian; Díaz Lozada, José Manuel; Garcia Rodriguez, Carlos Marcelo; Szupiany, Ricardo Nicolas; Best, James L.; et al.; The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing; Elsevier Science; Geomorphology; 304; 1-2018; 99-112
0169-555X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/89544
identifier_str_mv Herrero, Horacio Sebastian Julian; Díaz Lozada, José Manuel; Garcia Rodriguez, Carlos Marcelo; Szupiany, Ricardo Nicolas; Best, James L.; et al.; The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing; Elsevier Science; Geomorphology; 304; 1-2018; 99-112
0169-555X
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://linkinghub.elsevier.com/retrieve/pii/S0169555X17305330
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.geomorph.2017.12.025
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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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