Sediment transport modelling : Relaxation schemes for Saint-Venant -- Exner and three layer models - Archive ouverte HAL Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2012

Sediment transport modelling : Relaxation schemes for Saint-Venant -- Exner and three layer models

Résumé

In this note we are interested in the modelling of sediment transport phenomena. We mostly focus on bedload transport and we do not consider suspension sediment processes. We first propose a coupled numerical scheme for the classical Saint-Venant -- Exner model. It is based on a relaxation approach and it works with all sediment flux function. We exhibit that this coupled approach is more stable than the splitting approach that is mostly used in industrial softwares. Then we derive an original three layers model in order to overcome the difficulties that are encountered when using the classical Exner approach and we write a related relaxation model.
Fichier principal
Vignette du fichier
cemracs-edf_final.pdf (1.28 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00674363 , version 1 (27-02-2012)

Identifiants

  • HAL Id : hal-00674363 , version 1

Citer

Emmanuel Audusse, Christophe Chalons, Olivier Delestre, Nicole Goutal, Magali Jodeau, et al.. Sediment transport modelling : Relaxation schemes for Saint-Venant -- Exner and three layer models. 2012. ⟨hal-00674363⟩
1110 Consultations
725 Téléchargements

Partager

Gmail Facebook X LinkedIn More