SIMULATION OF NATURAL CONVECTION IN A RECTANGULAR CAVITY TAKING INTO ACCOUNT RADIATION HEAT TRANSFER IN THE OPENFOAM PACKAGE

Abstract

The urgent problem of developing alternative renewable energy sources such as solar panels, the task of providing effective methods for cooling the structural elements of modern computer computing systems, as well as the issues of cooling nuclear reactors determine the relevance of this work. The problem of mathematical modeling of natural convection in a three-dimensional model of a room with a heating source with a height of 0.5m, a width of 1m and a depth of 1m, the temperature of which is 500K, is considered approach. The temperatures of the floor, ceiling and side walls of the room were 300K. The mathematical basis of the modeling is the Reynolds-averaged three-dimensional stationary Navier-Stokes equations, supplemented by the corresponding equations. The standard buoyantSimpleFoam solver of the open source package OpenFOAM was used for mathematical modeling taking into account various radiation models.