水雾作用下的电缆隧道火灾的数值模拟研究

Numerical Simulation of the Cable Tunnel Fire under the Control of Water Mist

建立具有自动灭火功能的电缆隧道模型,采用美国NIST开发的场模拟程序FDS(5.0)进行模拟计算。计算结果表明在水雾的作用下,上部空间能够得到很好的降温对于下部的烟气也可以很好的控制,可以有效地用于电缆隧道的灭火。

This paper establishs a cable tunnel model with the function of automatic fire extinguishing . Using the Simulation procedures FDS which developed by the United States NIST （5.0） to simulate. The resuh shows that the effects of the water mist, the upper space can be better cooled, the lower part of the flue gas can be well controlled. The water mist can be used effectively to the cable tunnel fire.