消防科学与技术 ›› 2020, Vol. 39 ›› Issue (11): 1486-1489.
姚斌1,2,3,4,朱国庆1,2,3,4,朱辉5,李明轩5,郭万海1,2,3,4
YAO Bin1,2,3,4, ZHU Guo-qing1,2,3,4, ZHU Hui5,LI Ming-xuan5, GUO Wan-hai1,2,3,4
1. Jiangsu Key Laboratory of Fire Safety in Urban Underground Space, Jiangsu Xuzhou 221116, China;2. Institute of Public Safety and Fire Protection, China University of Mining and Technology, Jiangsu Xuzhou 221116, China;3. Key Laboratory of Gas and Fire Control for Coal Mines, China University of Mining and Technology, Jiangsu Xuzhou 221116, China ;4. Faculty of Safety Engineering, China University of Mining and Technology, Jiangsu Xuzhou 221116, China;5. Sichuan Fire Science and Technology Research Institute of MEM, Sichuan Chengdu 610035, China
摘要:
对以木材为燃料的全尺寸腔室火灾回燃现象进行研究,展现了真实场景下的回燃现象并分析了回燃延迟时间及室内温度变化。运用FDS 软件对实验进行模拟,模拟结果表明回燃发生时喷出开口的火焰形态及室内温度变化趋势和实际实验基本一致;在此基础上运用FDS 分别研究了封闭腔室大开口和小开口情况下不同开口时间对回燃的影响。