Vers une méthodologie opérationnelle pour la caractérisation et la modélisation numérique de la dynamique des sédiments fins dans les retenues

Translated title of the contribution: Toward an operational methodology for the numerical modelling of fine sediments dynamics in reservoirs
  • Matthieu De Linares
  • , Olivier Cazaillet
  • , Christophe Peteuil
  • , Damien Alliau
  • , Germain Antoine
  • , Magali Jodeau
  • , Eric Valette

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Multi-dimensional numerical modelling (2D or 3D) enables to simulate the dynamics and evolution of sediment deposits in reservoirs, and can replace or complement physical modelling, which is intrinsically very limited for the case of cohesive sediment. Case studies are presented, which validate different steps necessary for the numerical modelling of sediments dynamics in reservoirs. Computation of bed shear stress by a 3D numerical model is validated by comparison with measurements on a physical model. Experience feedback on sediment characterization is presented. It concerns fall velocity and erodibility, in order to parameterize the model. Finally, an example of modelling of reservoir deposition including both cohesive and non-cohesive sediment is presented.

Translated title of the contributionToward an operational methodology for the numerical modelling of fine sediments dynamics in reservoirs
Original languageFrench
Title of host publication26th International Congress on Large Dams, 2018
PublisherCRC Press/Balkema
Pages117-138
Number of pages22
ISBN (Print)9781138612280
Publication statusPublished - 1 Jan 2018
Externally publishedYes
Event26th International Congress on Large Dams, 2018 - Vienna, Austria
Duration: 4 Jul 20186 Jul 2018

Publication series

Name26th International Congress on Large Dams, 2018

Conference

Conference26th International Congress on Large Dams, 2018
Country/TerritoryAustria
CityVienna
Period4/07/186/07/18

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