| Titre : | Dam-break induced sediment movement: experimental approaches and numerical modelling |
| Titre original : | Mouvements sédimentaires induits par une rupture de barrage: approches expérimentales et numériques |
| Auteurs : | Zech, Y., Auteur ; Soares-Frazao, S., Auteur ; Spinewine, B., Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Journal of hydraulic research (Vol. 46 N°2, 2008) |
| Article en page(s) : | p. 176-190 |
| Note générale : |
Hydraulique
Résumé en Français |
| Langues : | Anglais |
| 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) |
| Tags : | Bank erosion Dam-break flow Experiments Sediments Two-layer model |
| 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.
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| DEWEY : | 627 |
| ISSN : | 0022-1686 |
| En ligne : | http://www.journalhydraulicresearch.com |
