Using turbulent flow numerical simulation

a number of conditions before and after smoke screen installation in the typical single-island station’s public area of Beijing subway were simulated in the fire situation.The numerical simulation work is entirely based on existing actual physical boundaries

and considers the heating from the train and lighting

also from the people and the personnel effects on flow. The temperature and smoke flow situation before and after setting up the smoke screen were analyzed by numerical simulation.The results show that setting up the smoke screen for old island station of Beijing subway is important.It can inhibit the smoke flow and reduce the temperature of evacuation channel.It will greatly improve the safety of the station under fire.