A QUASI-3D MODEL FOR SUSPENDED SEDIMENT TRANSPORT BY CURRENTS AND WAVES

Irene Katopodi, Jan S. Ribberink

Abstract


A QUASI-3D model for suspended sediment transport based on an asymptotic solution of the convection-diffusion equation is developed for currents and waves. The influence of waves on the sediment concentration is included through the diffusion analogy and the bed boundary condition. Validity analysis provides conditions that permit the check of the model applicability. The presence of waves enhances the validity area of the model considerably. The model compares favourably with a 3D model and experimental data.

Keywords


suspended sediment; sediment transport; quasi-3D model; current model; wave model; transport model

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