Dam-break induced sediment movement: Experimental approaches and numerical modelling

Zech, Yves;Soares Frazao, Sandra;Spinewine, Benoît;Le Grelle, N
(2008) Journal of Hydraulic Research — Vol. 46, n° 2, p. 176-190 (2008)

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Authors
  • Zech, YvesUCLouvain
    Author
  • Author
  • Spinewine, BenoîtUCLouvain
    Author
  • Le Grelle, N
    Author
Abstract
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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Citations

Zech, Y., Soares Frazao, S., Spinewine, B., & Le Grelle, N. (2008). Dam-break induced sediment movement: Experimental approaches and numerical modelling. Journal of Hydraulic Research, 46(2), 176-190. https://doi.org/10.1080/00221686.2008.9521854 (Original work published 2008)