Morphology and flow structures in a large confluence-diffluence: Rio Parana, Argentina
Détails
ID Serval
serval:BIB_166CFFE29CD4
Type
Actes de conférence (partie): contribution originale à la littérature scientifique, publiée à l'occasion de conférences scientifiques, dans un ouvrage de compte-rendu (proceedings), ou dans l'édition spéciale d'un journal reconnu (conference proceedings).
Collection
Publications
Institution
Titre
Morphology and flow structures in a large confluence-diffluence: Rio Parana, Argentina
Titre de la conférence
RIVER FLOW 2006, VOLS 1 AND 2
ISBN
0-415-40815-6
Statut éditorial
Publié
Date de publication
2006
Editeur⸱rice scientifique
Ferreira RML, Alves CTL, Leal GAB, Cardoso AH
Série
Proceedings and Monographs in Engineering, Water and Earth Sciences
Pages
1277-1282
Notes
International Conference on Fluvial Hydraulics, Lisbon, PORTUGAL, SEP
06-08, 2006
06-08, 2006
Résumé
Confluence-diffluence units are key elements within many river systems
and present a complex and linked pattern of flow and sediment transport
between these two nodes. Past work has seen much progress in our
modelling of river confluences, and increasing attention is being paid
to bifurcations and the important role of bifurcation asymmetry.
However, most of these studies have been conducted in laboratory flumes
or within small rivers (depths less than 3 m and widths < 100 m). This
paper presents a study of the bed morphology and 3D flow within a very
large confluence-diffluence unit in the Rio Parana, Argentina. The
paper details the central scour within the reach and reveals that the
flow within the confluence-diffluence is dominated largely by the bed
roughness, and that the coherent secondary flow cells, that have been
identified in smaller channels and assumed to be present within large
rivers, are generally absent in this reach.
and present a complex and linked pattern of flow and sediment transport
between these two nodes. Past work has seen much progress in our
modelling of river confluences, and increasing attention is being paid
to bifurcations and the important role of bifurcation asymmetry.
However, most of these studies have been conducted in laboratory flumes
or within small rivers (depths less than 3 m and widths < 100 m). This
paper presents a study of the bed morphology and 3D flow within a very
large confluence-diffluence unit in the Rio Parana, Argentina. The
paper details the central scour within the reach and reveals that the
flow within the confluence-diffluence is dominated largely by the bed
roughness, and that the coherent secondary flow cells, that have been
identified in smaller channels and assumed to be present within large
rivers, are generally absent in this reach.
Web of science
Création de la notice
03/02/2011 15:41
Dernière modification de la notice
20/08/2019 13:46
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