论文部分内容阅读
为满足隧道火灾安全体系研究方面的需要,本文以中国科学技术大学火灾科学国家重点实验室的隧道试验台为对象,进行了比例模型隧道火灾试验,并利用Fire Dynamics Simulator(FDS)软件对该实验在不同纵向风速控制条件下的火灾烟气层沉降速度进行了计算机模拟,通过试验与模拟结果的对比,给出了不同纵向通风速度下,隧道火灾时烟气层沉降速度的变化规律,并提出了烟气分层化临界风速这一概念,为隧道火灾的控制、救援和人员疏散提供了一定的参考价值。
In order to meet the needs of research on tunnel fire safety system, a tunnel fire test was conducted on the tunnel test rig of the State Key Laboratory of Fire Science of University of Science and Technology of China. Fire Fire Simulator (FDS) The simulation results show that the settlement velocity of flue gas layer under different longitudinal wind speed control conditions is simulated by computer. The variation of flue gas layer settling velocity under different vertical ventilation velocities is given through the comparison between the experimental and simulation results. The concept of stratified critical wind velocity has provided some reference value for tunnel fire control, rescue and personnel evacuation.