Numerical Simulation Of Moving Process Of Smoke Plume During Mine Fire

Mine fire has many special characters such as breaking out suddenly, fire developing quickly, putting out fire and rescuing hardly. Under the influence of fire power, air is easily to be disturbed, even the air in the whole ventilation system. Therefore, to study the rule of air unsteadily moving and toxic and harmful gas spreading, and analyzing the dynamic spreading process of high-heat smoke plume with numerical value during the fire period play a theoretical guiding role for fixing the route for avoiding disaster, preventing and controlling the occurrence and spread of the fire, and directing the task of fighting and avoiding mine fire.The thesis stimulates the principles of fire combustion and spreading process of high-heat smoke. Combined with the concrete situations of the second Jinchuan mine, it also studies the problems relating to the state of air, the route of avoiding fire and the numerical modeling of fire parameter in the period of mine fire.1) Simulating and imitating the spreading process of high-heat smoke plume during mine fire period.2) Analyzing of mine fire on the basis of the numerical simulation and result of CFD.3) Analyzing the dynamic spreading process of fire smoke plume and fixing the route of avoiding the fire on the basis of the equilibrium diagram of Q-H;4) Unidirectional circuit imitating the moving of fire smoke plume and compiling procedure and calculating the result.5) Simulating the process during the period of fire of Jingchuan NO.2 mine.