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On the influence of the thickness of the sediment moving layer in the definition of the bedload transport formula in Exner systems

Abstract : In this paper we study Exner system and introduce a modified general definition for bedload transport flux. The new formulation has the advantage of taking into account the thickness of the sediment layer which avoids mass conservation problems in certain situations. Moreover, it reduces to a classical solid transport discharge formula in the case of quasi-uniform regime. We also present several numerical tests where we compare the proposed sediment transport formula with the classical formulation and we show the behaviour of the new model in different configurations.
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Submitted on : Friday, November 29, 2013 - 10:26:59 PM
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Enrique D. Fernandez-Nieto, Carine Lucas, Tomas Morales de Luna, Stephane Cordier. On the influence of the thickness of the sediment moving layer in the definition of the bedload transport formula in Exner systems. Computers and Fluids, Elsevier, 2014, 91, pp.87-106. ⟨10.1016/j.compfluid.2013.11.031⟩. ⟨hal-00821659v2⟩

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