Sabiia Seb
        Busca avançada

Botão Atualizar

Botão Atualizar

Registro completo
Provedor de dados:  ArchiMer
País:  France
Título:  Numerical modelling of heterogeneous sediment transport: new insights for particulate radionuclide transport and deposition
Autores:  Rivier, Aurélie
Le Hir, Pierre
Bailly Du Bois, Pascal
Laguionie, Philippe
Morillon, Mehdi
Data:  2017
Ano:  2017
Palavras-chave:  Sediment transport
Numerical modelling
Resumo:  A sediment transport module which solves simultaneously bedload and suspended load is developed, in a context of multiclass sediment transport. Different approaches are used to simulate each transport mode: (i) bedload transport results from divergence of transport capacity and (ii) suspension transport is solved using erosion and settling fluxes associated with advection/diffusion equation. A focus is made on the significance of hiding and exposure processes in case of heterogeneous sediment bed. Their influence is strong on bedload sediment transport, and induces specific trends of sediment sorting in sand dunes. The application to heterogeneous sediment dynamics in the macrotidal area of the Normand Breton Gulf (English Channel), show that hiding and exposure processes enhance the trapping of fine sediments (p articles <64 μm, on which radionuclides are likely to adsorb) in locations where coarsest sediments are dominant.
Tipo:  Text
Idioma:  Inglês
Editor:  Proceedings of Coastal Dynamics 2017. Troels Aagaard, Rolf Deigaard, David Fuhrman. Part 26 Modelling of coastal sediment transport. Paper n°161. pp.1767-1778
Formato:  application/pdf
Direitos:  info:eu-repo/semantics/openAccess

restricted use

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC:

Valid HTML 4.01 Transitional