| Based on the assignment "Xuefengshan tunnel ventilation numerical simulation research", the article carried out numerical simulation on the Xuefengshan runnel by CFD software-PHOENICS. The critical velocities under fire situations are been studied, the article also studies the air density and temperature in the tunnel. The article introduces the network—ventilating theory to study the factors such as fan, traffic flow, natural wind, fire wind pressure, which affect the air in the tunnel.The article establishes the calculating model of these factors by the method of mass flow. A calculating program based on the above is been develop, which is put into the ventilation research of Xuefengshan tunnel. |
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