sediment transport; depth-averaged flow modelling; finite volume; erosion rate; dam break on an erodible topography
Abstract :
[en] The main purpose of the present paper is to describe and discuss the development, validation and application of a numerical model designed to handle transient flows with high sediment transport rates. The model considers non-equilibrium transport (i.e. accounting for loading / unloading delay) and is numerically as well as physically totally coupled. The closure relations needed to evaluate the exchange fluxes between the fixed bottom and the flowing mixture (erosion and deposition rates) are also detailed in the paper. Finally, the model is validated against experimental data collected in the framework of the European project IMPACT.
Disciplines :
Civil engineering
Author, co-author :
Dewals, Benjamin ; Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH)
Erpicum, Sébastien ; Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydraulique génér., const. hydraul. et méc. des fluides
Pirotton, Michel ; Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH)
Language :
English
Title :
Numerical modelling of transient flows with high sediment concentrations
Publication date :
2008
Audience :
International
Main work title :
Monitoring, Simulation, Prevention and Remediation of Dense Debris Flows II
Author, co-author :
DE WRACHIEN, D.
Publisher :
WIT Press
ISBN/EAN :
978-1-84564-118-4
Collection name :
Engineering Sciences volume 60
Pages :
71-80
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Commentary :
Edited by: University of Milan, Italy, C.A. BREBBIA, Wessex Institute of Technology, UK and M.A. LENZI, University of Padova, Italy
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