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旅客列车车厢内发生火灾时,火灾烟气的运动状况直接影响旅客的人身安全,往往造成重大的人员伤亡和巨大的财产损失。采用模型实验、数值模拟的方法对运行的旅客列车经过隧道发生火灾时车厢内烟气层高度的特征进行了研究,将旅客列车卧铺车厢处理为多个受限空间的组合,研究了车厢内烟气层高度在开口不同状况下的变化规律。模型实验与数值模拟相结合为列车车厢火灾研究提供了理论分析模型和实验研究方法,研究成果为车厢防火设计提供了重要的技术依据。
In the event of a fire in a train compartment of a passenger train, the movement of fire smoke directly affects the personal safety of passengers and often results in heavy casualties and huge property losses. The model experiment and numerical simulation are used to study the characteristics of flue gas layer height in the passenger compartment when the passenger train runs through the tunnel. The passenger train sleeper compartment is treated as a combination of several restricted spaces. Variation of gas layer height under different opening conditions. The combination of model experiment and numerical simulation provides a theoretical analysis model and experimental research method for train compartment fire research. The research results provide an important technical basis for cabin fire protection design.