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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

 

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Opened Access On the influence of the thickness of the sediment moving layer in the definition of the bedload transport formula in Exner systems
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Author: Fernández-Nieto, Enrique D.
Lucas, C.
Morales de Luna, Tomás
Cordier, Stephane
Department: Universidad de Sevilla. Departamento de Matemática Aplicada I (ETSII)
Date: 2014
Published in: Computers & Fluids, 91, 87-106.
Document type: Article
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 behavior of the new model in different configurations.
Cite: Fernández-Nieto, E.D., Lucas, C., Morales de Luna, T. y Cordier, S. (2014). On the influence of the thickness of the sediment moving layer in the definition of the bedload transport formula in Exner systems. Computers & Fluids, 91, 87-106.
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URI: http://hdl.handle.net/11441/32173

DOI: 10.1016/j.compfluid.2013.11.031

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