Gordyns'ka T. The mass transfer problems with boundary conditions partly unknown

The dissertation is devoted to evaluation of pollution mass transfer processes with groundwater. The main feature of the processes is an undefinitions of a part of boundary conditions. To define the filtration velocities the solution of the filtration theory boundary value problems have been obtained by the accurate method of conformal mappings. To define a type of unknown boundary conditions for the pollution concentration boundary value problems for a linear advection diffusion equation are considered. Their solutions are obtained by numerical methods, which are theoretically substantiated. No-isothermal pollution migration and transformation processes in homogeneous and heterogeneous porous mediums are investigated. They are described by the boundary value problems for a system of nonlinear heat mass transfer equations. On the basis of computing experiment series results the analysis of the physical process character have been done._