| 纵向通风下隧道速度场及温度场的模拟研究 |
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| 引用本文： | 孙可庆,杨晖,李锐.纵向通风下隧道速度场及温度场的模拟研究[J].建筑科学,2011,27(8):82-86. |
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| 作者姓名： | 孙可庆 杨晖 李锐 |
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| 作者单位： | 北京建筑工程学院环境与能源工程学院暖燃市级重点实验室,北京,100044 |
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| 基金项目： | 北京市“供热、供燃气、通风及空调工程”重点实验室开放课题(KF201007); 建筑环境与设备工程国家级高校特色专业建设项目; 北京市属市管高等学校人才强教深化计划资助项目(PHR201007127) |
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| 摘 要： | 在隧道火灾研究中,将临界速度作为衡量纵向通风效率的标准已被广泛认可.然而,对于排烟口位于火源两侧,两端都是进风口的情况,临界速度并不能有效地衡量通风效率.对此,研究人员提出了“限制性速度”的概念,并将其作为标准,但到目前为止,对于限制性速度的研究依然很少.本文中的CFD模型以0.Vauquelin的实验为基础,通过CF...
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| 关 键 词： | 隧道火灾 纵向通风 CFD 限制性速度 |
Simulation Study on Velocity and Temperature Fields with Longitudinal Ventilation in Tunnel |
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| SUN Ke-qing,YANG Hui,LI Rui.Simulation Study on Velocity and Temperature Fields with Longitudinal Ventilation in Tunnel[J].Building Science,2011,27(8):82-86. |
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| Authors: | SUN Ke-qing YANG Hui LI Rui |
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| Affiliation: | SUN Ke-qing,YANG Hui,LI Rui(Beijing Municipality Key Lab of Heating,Gas Supply,Ventilating and Air Conditioning Engineering,School of Environment and Energy Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China) |
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| Abstract: | In the studies of tunnel fire,the parameter of critical ventilation velocity was widely accepted as the benchmark to study the effiency of longitudinal ventilation.Whereas,for the situation that the air inlets were located at the ends of the tunnel and the smoke exhaust outlets were located between the air inlets and fire source,this parameter was not appropriate for evaluating the smoke control effect.To solve this problem,the concept of confinement velocity was proposed as the characteristic parameter to ... |
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| Keywords: | tunnel fire longitudinal ventilation CFD confinement velocity |
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