ABSTRACT
The present report is devoted to the elaboration and numerical realization coupled models: 3D model of suspension particles transport and 2D model of sediment bottom transportation in the coastal zone. This model is valuable for the prediction of water quality, as well as for the safe ship traffic in coastal systems. The model of suspended particles transport takes into account advection, micro-turbulent diffusion, gravitational sedimentation, complicated bottom and shoreline geometry and has been formulated as initial boundary-value problem for quasi-linear parabolic equation in 3D geometry. The two-dimensional bottom relief change model describes deposit material motion under influence of the near bottom stress, gravitational force and sedimentation of suspended particles. The results of modelling are suspended particles concentration and bottom surface as functions of temporal and space variables.
