Mathematical Modeling of Water and Solid Matter Motion by the Example of the Neva River

M. V. Shmakova

A mathematical model of water and solid matter motion is proposed in a three-dimensional formulation. Interrelated calculation of variables describing the state of the water flow and the flow of solid matter is presented. Bottom sediment resistance to the flow motion is presented by such characteristics of the soil as the coefficient of internal friction of the soil and cohesive force of the soil at shear. Computation results for 60-km reach of the Neva River are given as an example of model calculation.