Morphology, flow and sediment transport over a natural 3D dune field: Rio Parana, Argentina
Details
Serval ID
serval:BIB_029C7B078646
Type
Inproceedings: an article in a conference proceedings.
Collection
Publications
Institution
Title
Morphology, flow and sediment transport over a natural 3D dune field: 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
997-1004
Notes
International Conference on Fluvial Hydraulics, Lisbon, PORTUGAL, SEP
06-08, 2006
06-08, 2006
Abstract
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.
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
Create date
03/02/2011 15:41
Last modification date
20/08/2019 13:24
Usage data
