Abstract
This paper presents a numerical modelling of the thermal discharge on the aquatic environment under various operational capacities of TPP, which is solved by the equations of Navier - Stokes and temperature for an incompressible fluid in a stratified medium based on the method of splitting by physical parameters that can be discretize by the control volume method. In the first step intermediate velocity field is solved by 5-step Runge - Kutta method. At the second stage Poisson equation for the pressure field is solved by Jacobi method. Finally at the third step is assumed that the transfer is carried out only by pressure gradient. The fourth step of the temperature equation is also solved as motion equations. The obtained numerical results of three-dimensional stratified turbulent flow reveals qualitatively and quantitatively approximate the basic laws of hydrothermal processes occurring in the aquatic environment.