秦岭特长公路隧道火灾数值仿真研究

该文通过计算机建立了实验中所用的秦岭特长公路隧道的数值模型，并采用与实验中相同的火灾规模和边界条件对不同风速下隧道拱顶纵向温度分布进行了数值仿真研究。将仿真的结果和实验数据进行了比较，实现了对这个数值模型的有效性的验证。然后，采用这个数值模型对秦岭特长公路隧道发生火灾时的热环境进行了数值仿真研究，获得了从实验中很难得到的数据并在此基础是对隧道的性能化防火设计、消防安全措施、特别是对人员的在火灾时的安全逃生作了可靠的分析和预测。

Numerical Simulation of the Very Long Qinling Tunnel Fire

This paper establishes a numerical model of the Qinling very long road tunnel used in experiment through computer and gets the distribution of longitudinal temperature along the tunnel vault at different wind speed by simulation in which the same fire scale and boundary conditions are used as in the experiment. The fire model has been validated for this application by comparing the temperature data obtained in the simulation with the experimental data. And then using this numerical simulation model estimates the thermal environment of the very long Qinling tunnel in the event of fire. Thus, some data not easy to obtain in the experiment have been obtained to predict and analyze the tunnel performance - based fire protection design, fire prevention , especially the evacuation safety in the event of tunnel fire.