Fluid flow over loose mediums

The article is devoted to problem of three-dimensional movement of ideal incompressible nonhomogeneous fluid over loose mediums. The partial case was researched. It is potential movement of two layers of homogeneous fluid with different velocity. This mathematical model is given in linear approximation. During the research the dispersion correlation has been advanced which characterize the dependence of the relief of the bottom upon the rheology of the ground and hydrodynamic characteristics of the water layers.