Study on the Influence of the Slope Composition of the V-shaped Tunnel on the Smoke Exhaust Efficiency of the Point Exhaust System

The influences of the slope composition on both sides variable point and opening numbers exhaust vent smoke diffusion heat efficiency in V-shaped tunnel were investigated by numerical method. results showed that for asymmetric tunnel, increasing number vents large side can improve efficiency, but control a smaller rang is relatively difficult. corresponding strategy should be drawn up accordance with goal system practice.