Artículo
A sediment fluxes investigation for the 2-D modelling of large river morphodynamics
Guerrero, Massimo; Latosinski, Francisco Guillermo
; Nones, Michael; Szupiany, Ricardo Nicolas
; Re, Mariano; Gaeta, Maria Gabriella
Fecha de publicación:
07/2015
Editorial:
Elsevier
Revista:
Advances in Water Resources
ISSN:
0309-1708
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A complete understanding of alluvial-bed dynamics is desirable for evaluating a variety of issues related to water resources. Sediment fluxes were investigated in a bifurcation of the large Parana River near Rosario, Argentina. The backscatter estimations from the Doppler profilers provided the suspended load of the sediment forming the riverbed. An echo-sounder was applied to track the dunes yielding the bed-load estimation. Aiming to show the usefulness of the recorded data, a 2-D numerical code was applied to the 10-km long and 2-km wide Rosario reach. The morphodynamic module was un-coupled from the hydrodynamics assessment, which enabled the long-term prediction of the river morphology accounting for the hydrological yearly variation with a quasi-steady approach. Numerical experiments were performed to test the sensitivity of the hydrodynamic model to the computational time-step and mesh size, to test the un-coupling scheme performance regarding the full-dynamic modelling, to test the accuracy of the sediment transport formulae based on the field evidence and, finally, to provide guidance to properly fix the model parameters.
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Identificadores
Colecciones
Articulos(CCT - SANTA FE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Citación
Guerrero, Massimo; Latosinski, Francisco Guillermo; Nones, Michael; Szupiany, Ricardo Nicolas; Re, Mariano; et al.; A sediment fluxes investigation for the 2-D modelling of large river morphodynamics; Elsevier; Advances in Water Resources; 81; 7-2015; 186-198
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