| 半横向通风方式隧道内污染物分布的数值仿真 |
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| 引用本文： | 任锐,谢永利,楼慧元.半横向通风方式隧道内污染物分布的数值仿真[J].防灾减灾工程学报,2011,31(1):96-101. |
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| 作者姓名： | 任锐 谢永利 楼慧元 |
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| 作者单位： | 长安大学公路学院,西安,710064 |
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| 基金项目： | 交通部西部交通建设科技项目 |
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| 摘 要： | 某城市公路隧道采用半横向通风方式进行火灾排烟,其排风孔位于隧道侧壁顶部.针对该城市公路隧道,运用CFD数值仿真方法建立1:1的三维数值仿真模型,模拟不同工况下,开启不同形状排风孔时,隧道内的风速、风压以及污染物浓度的分布情况.研究表明,排风孔所在位置的隧道横断面上,形成一个左侧区域负压较高、压强变化梯度大而右侧区域负压...
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| 关 键 词： | 隧道通风 半横向 污染物浓度分布 排风孔开口高度 数值仿真 |
Numerical Simulation and Engineering Applications of Pollutant Distribution inside the Tunnel with Semi-transverse Ventilation System |
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| REN Rui,XIE Yong-li,LOU Hui-yuan.Numerical Simulation and Engineering Applications of Pollutant Distribution inside the Tunnel with Semi-transverse Ventilation System[J].Journal of Disaster Prevent and Mitigation Eng,2011,31(1):96-101. |
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| Authors: | REN Rui XIE Yong-li LOU Hui-yuan |
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| Institution: | REN Rui,XIE Yong-li,LOU Hui-yuan (School of Highway,Chang'an University,Xi'an 710064,China) |
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| Abstract: | Considering the semi-transverse exhaust ventilation of a certain city tunnel,the ventilation hole was made in the upper left wall in the tunnel.We established an 1:1 three-dimensional simulation model by using the computational fluid dynamics numerical simulation method and simulated wind speed,air pressure and the concentration of pollutants in the tunnel in different conditions and made different shapes of ventilation holes,and then carried out the comparative analysis,and drew some conclusions:in the tun... |
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| Keywords: | tunnel ventilation semi-transverse pollutant concentration ventilation hole height numerical simulating |
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