The role of the depth-averaged concentration in coastal morphodynamics
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 mech...
| Autores: | , , , , , |
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| Tipo de recurso: | capítulo de libro |
| Fecha de publicación: | 2009 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/6560 |
| Acceso en línea: | https://hdl.handle.net/2117/6560 |
| Access Level: | acceso abierto |
| Palabra clave: | Hydrodynamics Sediment transport Morphodynamics Hydrodynamics Sediment transport Sediment concentration Self-organization Hidrodinàmica Sedimentació -- Transport Àrees temàtiques de la UPC::Física |
| Sumario: | 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. |
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