【作者】 高晓明； 崔峰青； 韩新； 丛北华；

【Author】 Gao Xiaoming~1,Cui Fengqing~1 and Han Xin~(1,2) (1.Shanghai Institute of Disaster Prevention and Relief,Tongji University,Shanghai 200092,China; 2.Tongji Antai R&D Center of Engineering Disaster Prevention,Shanghai 200032,China)

【机构】 同济大学上海防灾减灾研究所； 同济安泰工程防灾研发中心；

【摘要】 以某地铁隧道过江段为研究对象,基于CFD数值模拟方法,采用大涡模拟火灾分析软件FDS对相同纵向风速条件下,排烟道内不同排烟风速对地铁列车火灾烟气控制效果的影响进行模拟对比分析,分析结果可为设计单位对在排烟风机的选取提供一定的参考。模拟分析的结果表明,当纵向风速设定为1 m/s时,排烟风道内排烟风速为5 m/s即能达到较好的地铁列车火灾烟气控制效果。更多还原

【Abstract】 Taking a subway tunnel as the research object and based on the CFD simulation method,this paper adopts a large eddy simulation analysis software FDS to simulate and analyze the effect of exhaust velocity on fire smoke control under the condition of the same longitudinal ventilation velocity in subway tunnel.The simulated results can provide some reference to design institutes in the selection of exhaust fan.While the longitudinal ventilation velocity set as 1m/s,the simulation results demonstrate that a quite good smoke control effect could be achieved when the exhaust velocity reaches 5 m/s in the smoke exhaust duct.更多还原