Morphology, flow and sediment transport over a natural 3D dune field: Rio Parana, Argentina

Détails

ID Serval
serval:BIB_029C7B078646
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
Titre
Morphology, flow and sediment transport over a natural 3D dune field: Rio Parana, Argentina
Titre de la conférence
River Flow 2006, Vols 1 and 2
Auteur(s)
Parsons  D. R., Best  J. L., Lane  S. N., Hardy  R. J., Kostaschuk R., Shugar D., Orfeo O.
ISBN
0-415-40815-6
Statut éditorial
Publié
Date de publication
2006
Editeur scientifique
Ferreira RML, Alves CTL, Leal GAB, Cardoso AH
Série
Proceedings and Monographs in Engineering, Water and Earth Sciences
Pages
997-1004
Notes
International Conference on Fluvial Hydraulics, Lisbon, PORTUGAL, SEP
06-08, 2006
Résumé
The morphology, flow and process mechanics of river dunes has attracted
much interest over many years. However, many of these studies have
concentrated on investigating two-dimensional (213) bed features and
their associated flow structures and bed stress distributions. This
morphological simplification imposes inherent limitations on our
interpretation and understanding of dune form and flow dynamics, as
natural dunes are invariably three-dimensional (313) with an associated
fully 3D flow structure. For example, studies over 2D forms neglect the
significant effect that lateral flow and secondary circulation may have
on the flow structure and thus dune morphology. This paper details a
field investigation of the interactions between the 3D morphology, 3D
turbulent flow structure and suspended sediment movement over large
alluvial sand dunes in the Rio Parana, NE Argentina. Fixed point and
moving vessel surveys enabled the links between three-dimensionality,
large-scale turbulence and sediment suspension over the dunes to be
investigated.
Web of science
Création de la notice
03/02/2011 15:41
Dernière modification de la notice
20/08/2019 13:24
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