Morphology and flow structures in a large confluence-diffluence: Rio Parana, Argentina
Details
Serval ID
serval:BIB_166CFFE29CD4
Type
Inproceedings: an article in a conference proceedings.
Collection
Publications
Institution
Title
Morphology and flow structures in a large confluence-diffluence: Rio Parana, Argentina
Title of the conference
RIVER FLOW 2006, VOLS 1 AND 2
ISBN
0-415-40815-6
Publication state
Published
Issued date
2006
Editor
Ferreira RML, Alves CTL, Leal GAB, Cardoso AH
Series
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
Abstract
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.
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Create date
03/02/2011 15:41
Last modification date
20/08/2019 13:46
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