Title :
Influence of turbulence modelling on cross-shore suspended sediment transport
Author :
Spielmann, K. ; Astruc, D. ; Thual, O. ; Mocke, G.P.
Author_Institution :
Inst. de Mecanique des Fluides, CNRS, Toulouse, France
fDate :
28 Sep-1 Oct 1998
Abstract :
Turbulence modelling is of primary interest when computing the hydrodynamics and sediment transport in the surf zone. The authors use a stationary 2DV model to compute velocity and concentration fields as well as sediment flux and sea-bed evolution. The authors analyse the results obtained using three different turbulent viscosity models. The simulations are compared with laboratory experimental data. The best turbulent viscosity parameterisation, which takes into account the turbulent energy transfer from the wave motion to the mean flow, gives good results
Keywords :
hydrodynamics; ocean waves; sediments; turbulence; concentration field; cross-shore suspended sediment transport; hydrodynamics; laboratory experimental data comparison; mean flow; seabed evolution; sediment flux; sediment transport; simulations; stationary 2D vertical flow model; surf zone; turbulence modelling; turbulent energy transfer; turbulent viscosity models; turbulent viscosity parameterisation; velocity field; wave motion; Computational modeling; Energy dissipation; Equations; Hydrodynamics; Sea measurements; Sediments; Surface morphology; Surface waves; Uninterruptible power systems; Viscosity;
Conference_Titel :
OCEANS '98 Conference Proceedings
Conference_Location :
Nice
Print_ISBN :
0-7803-5045-6
DOI :
10.1109/OCEANS.1998.724311