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Numerical Simulation for Smoke Flow of the Underground Railway Tunnel Fire

The characteristics of tunnel fire are analyzed, and the numerical simulation of some tunnel of Shenyang railway is made with the CFD software star-ccm+ 5.02, which applies the field modeling method. A comprehensive understanding of tunnel fire characteristics and flue gas development are obtained, through analyzing the concentration field and temperature field, which may provide the theoretical background for evacuation design in tunnel fire. The effective measures of fire rescue and evacuation are also put forward.