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	Provedor de dados ArchiMer (2) Autor Bailly Du Bois, Pascal (1) Blanpain, Olivier (1) Laguionie, Philippe (1) Le Hir, Pierre (1) Morillon, Mehdi (1) Rivier, Aurélie (1) Mais... Palavra-chave Bedload (2) Numerical modelling (2) Charriage (1) English Channel (1) Exposure (1) Flume experiments (1) Graded sediment (1) Hiding (1) Image processing (1) In-situ data (1) Manche (1) Mesures en canal (1) Mesures in-situ (1) Modélisation numérique (1) Morphodynamics (1) Morphodynamique (1) Sediment sorting (1) Sediment transport (1) Suspension (1) Sédiment multiclasse (1) Mais... Tipo do documento Text (2) Ano 2017 (1) 2009 (1) País France (2) Idioma Francês (1) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Dynamique sédimentaire multiclasse : de l’étude des processus à la modélisation en Manche ArchiMer Blanpain, Olivier. The purpose of this work is the implementation of a sediment transport model in the English Channel. The design of such a model requires the identification of the physical processes, their modelling and their in-situ validation. Because of the sedimentary particularities of the study area, modelling of the mechanical behaviour of a non uniform mixture of sediments and particularly of the fine grains within a coarse matrix is required. This study focused on the characterization of the relevant processes by acquisition of experimental and in-situ data. Data acquired in hydro-sedimentary conditions comparable to those found in the English Channel are scarce. A new instrument and image processing technique were specifically conceived and implemented in-situ to... Tipo: Text Palavras-chave: Manche; Sédiment multiclasse; Modélisation numérique; Morphodynamique; Charriage; Tri sédimentaire; Mesures in-situ; Traitement d’images; Mesures en canal; English Channel; Graded sediment; Numerical modelling; Morphodynamics; Bedload; Sediment sorting; In-situ data; Image processing; Flume experiments. Ano: 2009 URL: http://archimer.ifremer.fr/doc/00003/11426/7962.pdf Numerical modelling of heterogeneous sediment transport: new insights for particulate radionuclide transport and deposition ArchiMer Rivier, Aurélie; Le Hir, Pierre; Bailly Du Bois, Pascal; Laguionie, Philippe; Morillon, Mehdi. 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... Tipo: Text Palavras-chave: Sediment transport; Numerical modelling; Hiding; Exposure; Bedload; Suspension. Ano: 2017 URL: http://archimer.ifremer.fr/doc/00394/50580/51274.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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