TY - GEN
T1 - Morphology, flow and sediment transport over a natural 3D dune field
T2 - International Conference on Fluvial Hydraulics - River Flow 2006
AU - Parsons, D. R.
AU - Best, J. L.
AU - Lane, S. N.
AU - Hardy, R. J.
AU - Kostaschuk, R.
AU - Shugar, D.
AU - Orfeo, O.
PY - 2006
Y1 - 2006
N2 - 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 (2D) 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 (3D) 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 Paraná, 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.
AB - 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 (2D) 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 (3D) 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 Paraná, 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.
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M3 - Conference contribution
AN - SCOPUS:60749109833
SN - 9780415408158
T3 - Proceedings of the International Conference on Fluvial Hydraulics - River Flow 2006
SP - 997
EP - 1004
BT - Proceedings of the International Conference on Fluvial Hydraulics - River Flow 2006
Y2 - 6 September 2006 through 8 September 2006
ER -