Flow pattern at a river diffluence at the alluvial system of the Paraná River

Autores
Morell, Mariana Inés; Tassi, P. A.; Vionnet, Carlos Alberto
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This communication presents field and numerical data depicting the flow pattern formed at a diffluence of the Colastiné River, Argentina, where one branch accesses the local harbour. The harbour has been in decline since the 1970s due to costly maintenance dredging of the access channel. The objective of this work is thus twofold: to show the persistence of the flow pattern developed at the diffluence despite recent morphological changes seen at the site, and to test a possible solution to the access channel sedimentation problem. Knowledge gained during the execution of the study helped to validate a code developed to process field data captured with two acoustic Doppler current profilers (ADCPs). The results confirm that both branches are prone to developing secondary currents. Simulations show that an engineering intervention downstream of the bifurcation can establish a self-dredging flow reversal along the access channel, turning the actual diffluence into a stable confluence.
Fil: Morell, Mariana Inés. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios Hidro-ambientales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Fil: Tassi, P. A.. Laboratoire National d’Hydraulique et Environnement; Francia. Saint-Venant Hydraulics Laboratory; Francia
Fil: Vionnet, Carlos Alberto. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios Hidro-ambientales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Materia
Adcp Measurements
Confluences-Diffluences
Helical Motion
River Bends
Secondary Currents
Telemac Mascaret System
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:11336/31402
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Flow pattern at a river diffluence at the alluvial system of the Paraná RiverMorell, Mariana InésTassi, P. A.Vionnet, Carlos AlbertoAdcp MeasurementsConfluences-DiffluencesHelical MotionRiver BendsSecondary CurrentsTelemac Mascaret Systemhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1This communication presents field and numerical data depicting the flow pattern formed at a diffluence of the Colastiné River, Argentina, where one branch accesses the local harbour. The harbour has been in decline since the 1970s due to costly maintenance dredging of the access channel. The objective of this work is thus twofold: to show the persistence of the flow pattern developed at the diffluence despite recent morphological changes seen at the site, and to test a possible solution to the access channel sedimentation problem. Knowledge gained during the execution of the study helped to validate a code developed to process field data captured with two acoustic Doppler current profilers (ADCPs). The results confirm that both branches are prone to developing secondary currents. Simulations show that an engineering intervention downstream of the bifurcation can establish a self-dredging flow reversal along the access channel, turning the actual diffluence into a stable confluence.Fil: Morell, Mariana Inés. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios Hidro-ambientales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaFil: Tassi, P. A.. Laboratoire National d’Hydraulique et Environnement; Francia. Saint-Venant Hydraulics Laboratory; FranciaFil: Vionnet, Carlos Alberto. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios Hidro-ambientales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaTaylor & Francis2014-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31402Tassi, P. A.; Morell, Mariana Inés; Vionnet, Carlos Alberto; Flow pattern at a river diffluence at the alluvial system of the Paraná River; Taylor & Francis; Journal of Applied Water Engineering and Research; 2; 2; 12-2014; 140-1562324-9676CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/23249676.2014.981371info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/23249676.2014.981371info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:38:16Zoai:ri.conicet.gov.ar:11336/31402instacron: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:34982025-10-22 11:38:16.625CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Flow pattern at a river diffluence at the alluvial system of the Paraná River
title Flow pattern at a river diffluence at the alluvial system of the Paraná River
spellingShingle Flow pattern at a river diffluence at the alluvial system of the Paraná River
Morell, Mariana Inés
Adcp Measurements
Confluences-Diffluences
Helical Motion
River Bends
Secondary Currents
Telemac Mascaret System
title_short Flow pattern at a river diffluence at the alluvial system of the Paraná River
title_full Flow pattern at a river diffluence at the alluvial system of the Paraná River
title_fullStr Flow pattern at a river diffluence at the alluvial system of the Paraná River
title_full_unstemmed Flow pattern at a river diffluence at the alluvial system of the Paraná River
title_sort Flow pattern at a river diffluence at the alluvial system of the Paraná River
dc.creator.none.fl_str_mv Morell, Mariana Inés
Tassi, P. A.
Vionnet, Carlos Alberto
author Morell, Mariana Inés
author_facet Morell, Mariana Inés
Tassi, P. A.
Vionnet, Carlos Alberto
author_role author
author2 Tassi, P. A.
Vionnet, Carlos Alberto
author2_role author
author
dc.subject.none.fl_str_mv Adcp Measurements
Confluences-Diffluences
Helical Motion
River Bends
Secondary Currents
Telemac Mascaret System
topic Adcp Measurements
Confluences-Diffluences
Helical Motion
River Bends
Secondary Currents
Telemac Mascaret System
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This communication presents field and numerical data depicting the flow pattern formed at a diffluence of the Colastiné River, Argentina, where one branch accesses the local harbour. The harbour has been in decline since the 1970s due to costly maintenance dredging of the access channel. The objective of this work is thus twofold: to show the persistence of the flow pattern developed at the diffluence despite recent morphological changes seen at the site, and to test a possible solution to the access channel sedimentation problem. Knowledge gained during the execution of the study helped to validate a code developed to process field data captured with two acoustic Doppler current profilers (ADCPs). The results confirm that both branches are prone to developing secondary currents. Simulations show that an engineering intervention downstream of the bifurcation can establish a self-dredging flow reversal along the access channel, turning the actual diffluence into a stable confluence.
Fil: Morell, Mariana Inés. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios Hidro-ambientales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Fil: Tassi, P. A.. Laboratoire National d’Hydraulique et Environnement; Francia. Saint-Venant Hydraulics Laboratory; Francia
Fil: Vionnet, Carlos Alberto. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios Hidro-ambientales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
description This communication presents field and numerical data depicting the flow pattern formed at a diffluence of the Colastiné River, Argentina, where one branch accesses the local harbour. The harbour has been in decline since the 1970s due to costly maintenance dredging of the access channel. The objective of this work is thus twofold: to show the persistence of the flow pattern developed at the diffluence despite recent morphological changes seen at the site, and to test a possible solution to the access channel sedimentation problem. Knowledge gained during the execution of the study helped to validate a code developed to process field data captured with two acoustic Doppler current profilers (ADCPs). The results confirm that both branches are prone to developing secondary currents. Simulations show that an engineering intervention downstream of the bifurcation can establish a self-dredging flow reversal along the access channel, turning the actual diffluence into a stable confluence.
publishDate 2014
dc.date.none.fl_str_mv 2014-12
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/11336/31402
Tassi, P. A.; Morell, Mariana Inés; Vionnet, Carlos Alberto; Flow pattern at a river diffluence at the alluvial system of the Paraná River; Taylor & Francis; Journal of Applied Water Engineering and Research; 2; 2; 12-2014; 140-156
2324-9676
CONICET Digital
CONICET
url http://hdl.handle.net/11336/31402
identifier_str_mv Tassi, P. A.; Morell, Mariana Inés; Vionnet, Carlos Alberto; Flow pattern at a river diffluence at the alluvial system of the Paraná River; Taylor & Francis; Journal of Applied Water Engineering and Research; 2; 2; 12-2014; 140-156
2324-9676
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/23249676.2014.981371
info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/23249676.2014.981371
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
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
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 12.982451

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