Study on Parameters setting of Semi Transverse Smoke Exhaust in Subway Tunnel

By using fire dynamics software with PyroSim, the fire smoke flow in subway tunnel with semi transverse smoke exhaust mode is numerically simulated, and a variety of combination modes of semi transverse smoke exhaust are simulated to observe the smoke flow in subway tunnel. The author sets up a variety of smoke exhaust schemes by changing the distance, area and volume of smoke exhaust. The smoke flow and temperature field under different conditions are compared to analyse the exhaust efficiency of each exhaust outlet and the total exhaust efficiency. It provides a reference for the setting of semi transverse smoke exhaust system in subway tunnel.

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