Development of a quasi-3d numerical model for sediment transport prediction in the coastal region

To predict sediment transport in the coastal environment is of particularly importance for coastal and environmental engineers. The conventional 2DH computer models have certain limitation for their application in the complex flows. To describe details of flow structure across the water column and intra-wave processes, which are crucial for sand transport calculation, the present paper discussed implementation and validation of an intra-wave sand transport model with an existing phase resolving wave-current model. Model formulation and assumptions are presented briefly with details of model testing on several existing laboratory experiments. The model-data comparison indicates the ability of the numerical model system for sand transport prediction in a prototype scale. Further model validation and testing on field measurements are also needed.