| 顶部开孔组合方式对城市公路隧道自然通风的影响 |
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| 引用本文： | 葛家美,毕海权. 顶部开孔组合方式对城市公路隧道自然通风的影响[J]. 制冷与空调(四川), 2011, 25(1): 91-95 |
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| 作者姓名： | 葛家美 毕海权 |
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| 作者单位： | 西南交通大学机械工程学院,成都,610031 |
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| 摘 要： | 利用SES模拟软件,采用数值计算方法研究了城市公路隧道采用顶部开孔的自然通风方式时隧道内的气流运动和污染物扩散的问题。根据实际隧道几何尺寸,截取1000米隧道作为算例,研究了自然通风孔布置情况对隧道内空气流动及污染物扩散的影响。结果表明:在开孔数量和总开孔面积不变的情况下,与多个通风孔集中布置时相比单个通风孔均匀布置时隧道内通风换气效果最差,隧道沿程排放污染物能力最弱;而多个通风孔集中布置时五个孔一组的通风换气效果最好,隧道沿程排放污染物能力最强。
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| 关 键 词： | 城市公路隧道 通风孔 自然通风 污染物浓度 |
Influence of the Opening Combinations of Urban Tunnel on Natural Ventilation |
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| Ge Jiamei,Bi Haiquan. Influence of the Opening Combinations of Urban Tunnel on Natural Ventilation[J]. Refrigeration & Air-condition, 2011, 25(1): 91-95 |
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| Authors: | Ge Jiamei Bi Haiquan |
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| Affiliation: | Ge Jiamei Bi Haiquan(Department of Machnical & Engineering,Southwest Jiaotong University,Chengdu,610031) |
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| Abstract: | Use the SES software with numerical calculus method to study the problems of air flow and contamination's dispersion in the tunnel under the model of natural ventilation for urban tunnel with upper vents at the top of roof.According to actual tunnel geometry size,take 1000 meters tunnels as the example;we were studied air flow and contamination's dispersion in the tunnel impact on different style of upper vents.The calculated example showed:The urban tunnel with openings can exhaust polluted air along the t... |
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| Keywords: | urban tunnel upper vent natural ventilation concentration of contamination |
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