HEAT EXCHANGING MATHEMATICAL MODELS OF FIRE IN CABLE TUNNELS ANALYSIS

In this paper, the methods of mathematical modeling and means of computational gas hydrodynamics are analyzed, as well as the advantages of their use in studying the impact of fire load and structural characteristics of cable tunnels on the temperature regime of the fire. The analysis of modern software CFD complexes and the feasibility of their use in the investigation of fires in cable tunnels has been carried out. The methods for solving the complete Navier – Stokes equation system laid down in the algorithm of software complexes are described. For the computing experiment, it is proposed to use the computer system Fire Dynamic Simulator 6.2. and shows its advantages over other software systems.