Development Of A 3D Non Cohesive Suspended Sediment Transport Model For Free Surface Flows

The mathematical model for simulating three-dimensional (3D) suspended sediment (SS) transport under non-equilibrium situations is described. The model consists of a refined hydrodynamic model and a scalar transport model involving bed boundary conditions for either the sediment flux to or from the...

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Bibliographic Details
Published inWIT Transactions on Ecology and the Environment Vol. 2
Main Authors Ouillon, S, B. Le Guennec
Format Journal Article
LanguageEnglish
Published Southampton W I T Press 01.01.1993
Subjects
Boundary conditions
Computer simulation
Erosion
Free surfaces
Mathematical analysis
Mathematical models
Predictions
Sediment transport
Suspended sediments
Three dimensional models
Water depth
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Summary:The mathematical model for simulating three-dimensional (3D) suspended sediment (SS) transport under non-equilibrium situations is described. The model consists of a refined hydrodynamic model and a scalar transport model involving bed boundary conditions for either the sediment flux to or from the bed, or an estimated concentration level. It may be applied with the rigid-lid assumption or with an effective water-depth calculation so as to take the free surface effects into account. A test case for a situation with net erosion flux from the bed is presented, and the predicted development of the concentration profiles is compared with measurements. INTRODUCTION The prediction of sediment transport with laboratory experiments is costly, and mathematical models are needed to simulate these process. The mathematical models availa
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ISSN:1746-448X
1743-3541
DOI:10.2495/WP930231