| 房门突然打开对腔室火灾影响的数值模拟 |
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| 引用本文： | 祝科,毕昆. 房门突然打开对腔室火灾影响的数值模拟[J]. 中国人民武装警察部队学院学报, 2010, 26(6): 8-10 |
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| 作者姓名： | 祝科 毕昆 |
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| 作者单位： | 祝科,ZHU Ke(重庆北碚区消防支队,重庆,北碚,400700);毕昆,BI Kun(火灾科学国家重点实验室,安徽,合肥,230027) |
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| 摘 要： | 影响腔室火灾发展的因素很多。采用大涡模拟的方法对带门缝的腔室火灾特性进行数值计算研究。计算分析腔室内门缝火发生过程中的热释放速率、压强和温度等物理参数的变化，并进一步模拟分析房门突然打开对腔室火灾发展产生的影响。结果表明，由于门缝的存在使腔室火灾燃烧状况发生一定的变化，影响到火灾的发展；房门的突然开启致使大量的可燃烟气发生强烈的回燃，给消防人员入室灭火带来极大威胁。
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| 关 键 词： | 腔室火灾 大涡模拟 门缝火 回燃 |
The Digital Simulation of a Room Fire at the Moment the Door Opens |
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| ZHU Ke,BI Kun. The Digital Simulation of a Room Fire at the Moment the Door Opens[J]. Journal of the Chinese People's Armed Police Force Academy, 2010, 26(6): 8-10 |
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| Authors: | ZHU Ke BI Kun |
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| Affiliation: | 1. Beibei Municipal Fire Brigade, Beibei , Chongqing 400700, China; 2. State Key Laboratory of Fire Science, Hefei , Anhui Province 230027, China) |
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| Abstract: | There are many factors that affect fire change of room fires. This paper uses LES to analyze the fire traits is a room the moment the door opens. Several quantities, such as high pressure and the temperature etc, are computed, the impact the caused by door＇ s openness is simulated. The results indicates that the door with an openness can affect the combustion of a room fire and that the moment the door of a fire room suddenly opens, a backdraft occurs, which poses a great threat to the firemen. |
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| Keywords: | room fire LES crack fire backdraft |
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