Welkom op het expertplatform!
Dit platform verschaft informatie en kennis omtrent de WL expertisedomeinen 'hydraulica en sediment', 'havens en waterwegen', 'waterbouwkundige constructies', 'waterbeheer' en 'kustbescherming' - gaande van WL medewerkers met hun expertise, het curriculum van deze instelling, tot publicaties, projecten, data (op termijn) en evenementen waarin het WL betrokken is.
Het WL onderschrijft het belang van "open access" voor de ontsluiting van haar onderzoeksresultaten. Lees er meer over in ons openaccessbeleid.
| one publication added to basket [257963] |
Large eddy simulation of sediment transport in open-channel flow
In: Journal of Hydraulic Research = Journal de Recherches hydrauliques. International Association for Hydraulic Research = Association Internationale de Recherches Hydrauliques: Delft. ISSN 0022-1686; e-ISSN 1814-2079
|  |
| Author keywords |
LES; open channel; RANS; rouse profile; sedimentation; settling;suspension |
| Auteurs | | Top |
- Widera, P.
- Toorman, E.
- Lacor, C.
|
|
|
| Abstract |
Large Eddy Simulation (LES) is used to investigate the 3D-transport of sediment suspension in an open channel flow at a Reynolds number based on the frictional velocity. An Eulerian model was employed to represent the fluid and the sediment phases. The subgrid-scale fluid stresses were modeled with the Smagorinsky model, whereas subgrid-scale sediment fluxes were based on a gradient approach. To avoid tuning constants, a dynamic procedure was applied. A two-way coupling between sediment and fluid improved the computational description of sediment transport. Sediment concentration profiles and the statistics of sediment fluxes are presented and compared with the Rouse profile and the RANS solution. The results obtained agree well with the theory and with measurements. The LES results also indicate that the assumption of a constant Schmidt number, as is mostly assumed in RANS simulations is erroneous. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
