CFD Analog Simulation and Test on Ventilation and Fire of Subway Stations in Shenzhen

A subway environment control and ventilation system is to give a proper temperature and humidity to subway and comfortable environment for passengers,and to be helpful to the dispersal of emergency in subway. Different cities have different climate conditions and outdoor temperature and humidity,so the scheme of envi- ronment control in subway should be analyzed by considering objective conditions,project cost and operating status.In this paper,a physical and a mathematical model are built according to the design of Shenzhen subway (line 1),and the boundary conditions of the physical model are defined by the conditions of design and experi- ments,then the numerical simulation and the experiment of normal ventilating scheme and fire condition are done individually,and the results of the numerical analysis and the experiment are compared.The feasibility and the validity of CFD numerical simulation are proved.