| 竖井烟囱效应作用下的隧道火灾通风数值模拟 |
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| 引用本文： | 王泽宇,冯炼,张发勇. 竖井烟囱效应作用下的隧道火灾通风数值模拟[J]. 地下空间与工程学报, 2006, 2(3): 485-487,503 |
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| 作者姓名： | 王泽宇 冯炼 张发勇 |
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| 作者单位： | 西南交通大学机械工程学院,成都,610031;西南交通大学机械工程学院,成都,610031;西南交通大学机械工程学院,成都,610031 |
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| 摘 要： | 采用三维数值模拟的方法,对某带竖井隧道的火灾工况进行模拟计算。通过分析竖井烟囱效应作用下的压力场,以及由此对隧道内速度场和温度场产生的影响,进一步表明了在以竖井烟囱效应作用力为主要动力的情况下,配合以4m/s的通风风速可以有效遏止回流。
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| 关 键 词： | 火灾 隧道 烟囱效应 数值模拟 |
| 文章编号： | 1673-0836（2006）03-0485-03 |
| 收稿时间： | 2006-03-03 |
| 修稿时间： | 2006-03-03 |
Tunnel Fire Numerical Simulation with the Force of Shaft's "Chimney Effect" |
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| WANG Ze-yu,FENG Lian,ZHANG Fa-yong. Tunnel Fire Numerical Simulation with the Force of Shaft's "Chimney Effect"[J]. Chinese Journal of Underground Space and Engineering, 2006, 2(3): 485-487,503 |
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| Authors: | WANG Ze-yu FENG Lian ZHANG Fa-yong |
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| Affiliation: | College of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031 P . R . China |
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| Abstract: | A 3D numerical simulation method is employed to simulate the fire condition in a tunnel with shaft.The pressure field in the shaft and the change of velocity field and temperature field in the tunnel caused by "chimney effect ",are analyzed in this paper.Further,it is proved that when the "chimney effect" is the main power it can effectively prevent the back-flow in addition of the ventilation velocity of 4m/s. |
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| Keywords: | fire tunnel chimney effect numerical simulation |
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