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The role of the depth-averaged concentration in coastal morphodynamics
Calvete Manrique, Daniel; Falqués Serra, Albert; Swart, Huib E. de; Dodd, Nicholas; Ribas Prats, Francesca; Garnier, Roland
Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. DF - Dinàmica No Lineal de Fluids
In this contribution a discussion is presented on the development of self-organized coastal morphodynamic patterns which are due to the joint action of gradients in the depth-integrated concentration and the flow. This is done in the context of a depth-averaged shallow water model. Two physical mechanisms produce deposition-erosion patterns. Deposition either occurs where the current flows from high to low depth-averaged concentrations (1) or where the flow diverges (2). If flow conditions are quasi steady (i.e., the time scale on which bedforms evolve is much larger than the hydrodynamic time scales) only the former mechanism contributes to the formation of bottom patterns.
Àrees temàtiques de la UPC::Física
Hydrodynamics
Sediment transport
Morphodynamics Hydrodynamics Sediment transport Sediment concentration Self-organization
Hidrodinàmica
Sedimentació -- Transport
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/bookPart
World Scientific Publishing Company
         

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