地铁车站列车火灾烟气蔓延规律模拟分析
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摘要
设定列车停在站台停车范围内时列车中部车厢发生火灾,根据郑州市地铁1号线隧道及部分典型站台的建筑设计建立物理模型,采用数值模拟软件STAR-CCM+,运用CFD(计算流体力学)场模拟的方法,采用燃烧模型的火源设置方法,在一定工况下对列车火灾进行数值模拟分析,对火灾时的烟气温度场、速度场和CO浓度场进行深入研究。研究结果可为列车在地铁车站发生火灾时的人员安全逃生提供理论依据。
Providing a train fire happens in the middle carriage when the train stops at the platform,a physical model is established according to the architectural design of Zhengzhou metro Line 1 tunnel and some typical platforms. Then,the CFD( computational fluid dynamics) field simulation method,software STAR CCM +,and a fire source setting of combustion model are adopted to carry out the numerical simulation of train fire under certain working conditions,the characteristics of smoke flow temperature field,velocity filed and CO concentration field are studied,which may provide the theoretical background for passenger evacuation in train fire.
Providing a train fire happens in the middle carriage when the train stops at the platform,a physical model is established according to the architectural design of Zhengzhou metro Line 1 tunnel and some typical platforms. Then,the CFD( computational fluid dynamics) field simulation method,software STAR CCM +,and a fire source setting of combustion model are adopted to carry out the numerical simulation of train fire under certain working conditions,the characteristics of smoke flow temperature field,velocity filed and CO concentration field are studied,which may provide the theoretical background for passenger evacuation in train fire.
引文
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[12]王太晟,王雪颖,林晓巍,等.地铁站台火灾烟气扩散的盐水模型试验研究[J].城市轨道交通研究,2015(7):90.
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[14]王庆生,刘炳海,王文伟,等.铁路隧道救援站火灾模拟实验平台设计及细水雾系统抑制车厢火灾的模拟实验研究[J],火灾科学,2012,21(1):6.
[2]CHEN F,GUO S C,CHUAY H Y,et al.Smoke control of fires in subw ay stations[J].Theoretical and Computational Fluid Dynamics.2003(16):349.
[3]杨英霞,陈超等.全高安全门地铁车站火灾时烟气流动特性的模型实验[J].天津大学学报(自然科学版),2010,43(12):1060.
[4]GAO R,LI A G,HAO X P,et al.Fire-induced smoke control via hybrid ventilation in a huge transit terminal subw ay station[J].Energy and Bulidings,2012,45:280.
[5]高海林.屏蔽门对地铁火灾烟气流动的影响分析[J].消防科学与技术,2011,(3):214.
[6]张茜,曹建华,王文倩.典型地铁火灾场景中烟气蔓延与控制研究[J].中国安全生产科学技术,2011,7(7):20.
[7]赵兰英,王圣翔.地铁换乘站火灾烟气蔓延数值模拟与分析[J].消防科学与技术,2013,32(4):373.
[8]NA M,LONG H,LI Z,et al,Numerical study on the optimization of smoke ventilation mode at the conjunction area betw een tunnel track and platform in emergency of a train fire at subw ay station[J]Tunneling and Underground Space Technology,2014(40):151.
[9]王庆生,刘炳海,王文伟,等.细水雾灭火系统扑救铁路隧道救援站内客车火灾的全尺寸试验研究[J].安全与环境学报,2012,12(3):158.
[10]ZHU W,ZHOU X F,Simulation on evacuation from the subw ay under fire smoke[J].Safety Science Advance,2014(1):166.
[11]LI L X,ZHAO L Y.Numerical simulation for smoke flow of the underground railw ay tunnel fire[C]//International Conference on Civil.Nanjing:Transportation and Environmental Engineering,2011.
[12]王太晟,王雪颖,林晓巍,等.地铁站台火灾烟气扩散的盐水模型试验研究[J].城市轨道交通研究,2015(7):90.
[13]杜子学,杨绪杰,单轨车辆舒适性与运行平稳性仿真和试验研究[J].城市轨道交通研究,2014(5):37.
[14]王庆生,刘炳海,王文伟,等.铁路隧道救援站火灾模拟实验平台设计及细水雾系统抑制车厢火灾的模拟实验研究[J],火灾科学,2012,21(1):6.