地铁区间隧道事故通风数值模拟研究

Numerical Simulation on Ventilation in Case of Emergency in Metro Tunnel

运用成熟的CFD商业软件FLUENT,对高位喷嘴在地铁隧道事故通风中的应用效果进行了数值模拟,得出喷口形式、射流风速对事故区间通风效果的影响情况;与模型实验相比较,验证数值模拟的可行性; 对喷口射流造成的气流高速区对乘客逃生的影响情况进行分析。

With the mature CFD industrial software FLUENT, the effects of spray nozzle on the high position in the emergency ventilation is numerically simulated. The influences of different nozzle type and outlet velocity on the ventilation effect in the metro accident section are obtained. By comparing with the model test, the feasibility of numerical simulation is validated. In addition, the influence of high velocity area due to the jet around the spray nozzle on the passengers' escaping is analyzed.