Improvements in 3D sediment transport modelling with application to water quality issues

A new vertical scheme has been developed to represent suspended sediment transport processes in the TELEMAC-3D model. In comparison to the existing diffusion scheme, the newly developed advection/diffusion scheme is proved to be more robust. Three large scale test cases have been provided to assess the model accuracy in the presence of tidal flats and its ability to cope with distorted mesh elements. Finally, the 3D model has been applied to represent cohesive sediment transport processes and associated water quality issues in estuarine conditions.