Dam-break induced sediment movement: experimental approaches and numerical modelling / Zech, Y. in Journal of hydraulic research, Vol. 46 N°2 (2008)  

Dam-break induced sediment movement: experimental approaches and numerical modelling = Mouvements sédimentaires induits par une rupture de barrage: approches expérimentales et numériques [texte imprimé] / Zech, Y., Auteur ; Soares-Frazao, S., Auteur ; Spinewine, B., Auteur . - p. 176-190.
Hydraulique
Résumé en Français
Langues : Anglais (eng)
in Journal of hydraulic research > Vol. 46 N°2 (2008) . - p. 176-190

Mots-clés :	Bank erosion Dam-break flow Experiments Sediments Two-layer model
Index. décimale :	627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques
Résumé :	The present paper aims to present the issues and the scope of work conducted under the framework of the European Research Project IMPACT, in the field of dam-break induced geomorphic flows, at the Université Catholique de Louvain, Belgium. Two characteristic behaviours are described: the near- and far-field responses to the dam-break wave. This paper gives an overview of the experimental work carried out in the frame of the research programme: flat- and stepped-bed cases for the near-field, bank erosion experiment for the far-field. New developments in modelling are summarized as well for the near-field and for the far-field. The validation by comparison with experimental results highlights that a two-layer model is very efficient in modelling near-field features, while an appropriate modelling of bank failure and sediment re-distribution in the cross section is the key of far-field simulation. Some practical conclusions are given for the future of dam-break wave modelling in terms of needs for additional research.
DEWEY :	627
ISSN :	0022-1686
En ligne :	http://www.journalhydraulicresearch.com