Advance in Numerical Simulation for Sediment Transport under Co-action of Waves and Currents

Liqin Zuo, Dano Roelvink, Yongjun Lu

Wednesday 1 july 2015

8:30 - 8:45h at Mississippi (level 1)

Themes: (T) Sediment management and morphodynamics, (ST) Sediment transport mechanisms and modelling

Parallel session: 8A. Sediment - Transport

In coastal and estuarine areas, waves and tidal currents always coexist, which has great influence on sediment transport. It’s of great significance to research the numerical simulation of sediment movement under co-action of tidal currents and waves for harbour development, reclamation, coast utilization etc. State-of-the-art of the numerical simulation methods is reviewed and summaries and comments are made. First, the hydrodynamic simulation is briefly reviewed, which is mainly about simulation of currents movement effected by waves and numerical simulation of waves affected by currents. Then, some key problems in sediment transport modelling are focused on, which are treatments of the source/sink item in 2DH and 3D version, the diffusion coefficient, bottom boundary conditions, cohesive and non-cohesive sediment simulation, equilibrium and non-equilibrium sediment transport simulation etc. In addition, the modelling strategies for wave-current-sediment interaction are briefly presented. In the end, discussion and further development approach are proposed.