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Communication Dans Un Congrès Année : 2011

Comparison of sediment transport formulae during a flood wave in the river: an application of Telemac teaching

Résumé

For twenty years, the state pays attention to the risks of landslides: they could create a natural dam that would obstruct the bed of a river in the Alpine valley, creating a reservoir upstream. Originally, the assumption was that the accumulation of water would eventually cause a dam failure, creating a wave of destructive flooding and widespread, could happen. More recently, studies have shown that this scenario was not realistic: in fact, the water flow is gradually eroding the dam, creating intermittent flows downstream. In 2008, the CNR (Compagnie Nationale du Rhone [7]) conducted different tests on a physical model. The overall objective of our work is the study of some of these tests and comparing the experimental results of the CNR and our morphodynamics simulation of the river bed evolution. We make comparisons between different sediment transport formulations (Rickenmann [4], Einstein-Brown [1], Grass [2], other ...) based on the study of Recking [3] to see their influence on the erosion evolution of the river bed.
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Dates et versions

hal-00934977 , version 1 (19-11-2020)

Identifiants

  • HAL Id : hal-00934977 , version 1

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Caroline Genoux, Lucile Poulleau, Thomas Pochetat, Philippe Larroudé. Comparison of sediment transport formulae during a flood wave in the river: an application of Telemac teaching. XVIIIth Telemac & Mascaret User Club, Oct 2011, Chatou, France. pp.8-15. ⟨hal-00934977⟩

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