技术中心

【英文篇名】 Smoke flow regularity in fire in underground railway stations 【作者中文名】 那艳玲; 黄桂兴; 涂光备; 于松波; 【作者英文名】 By Na Yanling; Huang Guixing; Tu Guangbei and Yu SongboTianjin University; Tianjin; China; 【作者单位】 天津大学; 铁道第三勘察设计院; 中国建筑设计研究院 铁道第三勘察设计院; 【文献出处】 暖通空调, Heating Ventilating 烟气流动规律; 温度分布; CFD模拟; 燃烧试验; 【英文关键词】 underground railway fire; smoke flow regularity; temperature distribution; CFD simulation; combustion experiment; 【摘要】 以地铁火灾与烟气发展过程的数学模型为基础,建立CFD模拟的物理模型,对岛式无屏蔽门的地铁车站列车火灾进行了数值模拟。分析了火灾发生后的烟气流动规律及温度场和气流场的分布,并与实体燃烧试验的结果进行了对比。结果表明,如果方程模型选用恰当,边界条件设置合理,CFD模拟火灾的结果是能够令人满意的。 【英文摘要】 Establishing a CFD physical model based on the mathematical model of developing process of fire and smoke in underground railway, numerically simulates the train fire in island station without shield. Analyses the temperature and air flow distribution and smoke flow regularity, and compares the simulation results with the results of combustion experiments. The results show that CFD simulation result for fire is accurate enough if only the equation model is correctly selected and the boundary conditions are ...