| 动车组车内行李架火灾数值模拟 |
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| 引用本文： | 张丽荣,兆文忠,高峰,张军,党娜.动车组车内行李架火灾数值模拟[J].大连交通大学学报,2012(5):23-27. |
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| 作者姓名： | 张丽荣 兆文忠 高峰 张军 党娜 |
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| 作者单位： | 中国北车集团唐山轨道客车有限责任公司产品及技术研发中心;大连交通大学交通运输工程学院 |
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| 基金项目： | “十一五”国家科技支撑资助项目(2009BAG12A01) |
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| 摘 要： | 建立了模拟动车组车内火灾的计算流体动力学模型，基于低马赫数三维非稳态Navier-Stokes控制方程，使用大涡（LES——LargeEddySimulation）湍流模型计算火驱动的空气流动，对动车组行李架上小型火灾进行了数值仿真研究，分析了动车组行李架上小型火灾时车内烟气、温度及速度分布特点．结果表明：行李架上小型火灾事故时，烟雾仅在车顶部空间蔓延，只有顶部空间温度升高较为明显，既车顶部火源较小的小型火灾可以导致较高的局部高温．
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| 关 键 词： | 动车组 火灾 大涡模拟 温度 |
Research on Numerical Simulation of Fire on Luggage Rack in EMU |
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| ZHANG Li-rong,ZHAO Wen-zhong,GAO Feng,ZHANG Jun,DANG Na.Research on Numerical Simulation of Fire on Luggage Rack in EMU[J].Journal of Dalian Jiaotong University,2012(5):23-27. |
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| Authors: | ZHANG Li-rong ZHAO Wen-zhong GAO Feng ZHANG Jun DANG Na |
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| Institution: | 1.Research Center of Technology and Product,CNR Tangshan Railway Vehicle Co.,Ltd,Tangshan 063035,China;2.School of Traffic and Transportation Engineering,Dalian Jiaotong University,Dalian 116028,China) |
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| Abstract: | An aerodynamics model is set up for the simulation on fire disaster in a EMU car,the LES turbulenc model is used as a simulation method based on 3D unsteady Navier-Stokes equation,a fire accident simulation with a small fire source in luggage rack is performed,and the smoke spread and the tremeture distribution are achieved.The simulation results show that the smoke only exists in the top space,and the temperature increase in the top space is greater in case of a top space fire source,which even is small,but a local high temperature may be produced. |
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| Keywords: | EMU fire accident large eddy simulation temperature |
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