|
|
|
|
| |
|
|
| Chapalain, G; Smaoui, H; Lepretre, A; Nguyen, Kd; Ouahsine, A; Tessier, B. |
| The present paper deals with the modelling of hydro-sedimentary processes in the coastal area near Cape Gris-Nez and Cape Blanc-Nez (Dover Strait). The modelling procedure consists in coupling different hydro-sedimentary process models with a high spatial resolution two-dimensional tidal flow model (Nguyen and Ouahsine, 1992). The sediment transport models used include two semi-empirical models based on a dimensionless analysis and energetic concepts (Ackers and White, 1973; Engelund and Hansen, 1967), and a more heuristic cu (concentration times velocity) model (van Rijn, 1984 a; b). All these models are applied to predict instantaneous and tidally-integrated sediment transports in the area under investigation. |
| Tipo: Text |
Palavras-chave: DOVER STRAIT; TIDAL CURRENTS; COASTAL SEDIMENTS; HYDRO-SEDIMENTARY PROCESSES; MODELING. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00100/21140/18760.pdf |
| |
|
|
| Li, Zh; Nguyen, Kd; Bruncottan, Jc; Martin, Jm. |
| A coupled two-dimensional vertical width-integrated hydrodynamic and sediment transport numerical model is presented to simulate the ''turbidity maximum'' formation and dynamics in the Gironde estuary. A turbulence closure sub-model is used to parametrize the turbulent mixing process. The numerical results of a five-day simulation are compared with field measurements carried out at several locations. The formation and the displacement of the turbidity maximum during one tidal cycle are correctly simulated. The intensity of the ''turbidity maximum'' is strongly related to the turbulent energy field. The influence of the tidal amplitude on the suspended matter transport is also studied during the simulation. |
| Tipo: Text |
|
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00099/21007/18633.pdf |
| |
|
|
|
