| 纵向通风下坡度隧道火灾烟气特性数值模拟研究 |
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| 引用本文： | 周庆,倪天晓,周湘川. 纵向通风下坡度隧道火灾烟气特性数值模拟研究[J]. 中国安全科学学报, 2011, 21(3) |
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| 作者姓名： | 周庆 倪天晓 周湘川 |
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| 作者单位： | 1. 湖南省公安消防总队防火监督部,湖南长沙,410205
2. 中南大学防灾科学与安全技术研究所,湖南长沙,410075 |
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| 摘 要： | 为探讨纵向通风情况下坡度隧道火灾烟气的温度分布、回流长度等特性参数,运用火灾动力学模拟软件FDS建立一个长为500 m的公路隧道模型,对不同坡度、不同纵向通风速率的20组火灾工况进行模拟研究,通过分析各工况的模拟结果,并结合前人在隧道火灾烟气特性研究方面的成果,得到火灾情况下隧道内烟气的纵向温度分布规律、隧道拱顶温度变化规律、温度偏移及烟气回流长度变化规律等。
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| 关 键 词： | 坡度 隧道火灾 纵向通风 烟气特性 数值模拟 |
Numerical Simulation and Study of Smoke Properties in Slope Tunnel Fire with Longitudinal Ventilation |
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| ZHOU Qing,NI Tian-xiao,ZHOU Xiang-chuan. Numerical Simulation and Study of Smoke Properties in Slope Tunnel Fire with Longitudinal Ventilation[J]. China Safety Science Journal, 2011, 21(3) |
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| Authors: | ZHOU Qing NI Tian-xiao ZHOU Xiang-chuan |
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| Affiliation: | ZHOU Qing1 NI Tian-xiao2 ZHOU Xiang-chuan2(1 Fire Prevention and Supervision Division,Fire Corps of Hunan Province,Changsha Hunan 410205,China 2 Institue of Disaster Prevention Science and Safety Technology,Central South University,Changsha Hunan 410075,China) |
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| Abstract: | To study the smoke parameters of temperature distribution and smoke backflow length in slope tunnel fire with longitudinal ventilation,a 500-meter-long road tunnel model was established by the Fire Dynamics Simulation(FDS).Twenty groups of fire conditions were studied under different slopes and longitudinal ventilation speed rates.Based on the analysis of respective fire simulation data and the previous research achievements of the tunnel fire smoke properties,the longitudinal temperature distribution regul... |
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| Keywords: | slope tunnel fire longitudinal ventilation smoke properties numerical simulation |
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