| 新龙门隧道射流通风与污染物浓度的数值分析 |
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| 引用本文： | 冯炼.新龙门隧道射流通风与污染物浓度的数值分析[J].西南交通大学学报,1997,32(2):203-207. |
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| 作者姓名： | 冯炼 |
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| 作者单位： | 西南交通大学机械工程学院 |
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| 摘 要： | 提出了按具有运动污染源一维非恒定流模型计算隧道内气流速度和污染物浓度分布的方法，并对新龙门隧道进行了数值模拟，阐述了内燃机产生的有害气体的危害及组成成分，并按牵引功率计算出排污量；分析了影响污染浓度分布的各种因素。对列车在洞内交会地点、射流风机工作时间及风机的送风方向进行了综合比较，提出了有利工况。
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| 关 键 词： | 隧道 通风 数值模拟 污染物浓度 射流通风 |
A Numerical Analysis on Air Flow and Air Pollution InsideXinlongmen Railway Tunnel with Jet Fan Ventilation |
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| Feng,Lian.A Numerical Analysis on Air Flow and Air Pollution InsideXinlongmen Railway Tunnel with Jet Fan Ventilation[J].Journal of Southwest Jiaotong University,1997,32(2):203-207. |
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| Authors: | Feng Lian |
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| Abstract: | A one dimensional unsteady flow model which has a moving pollutant source is proposed for calculating air flow velocity and pollutant distribution inside Xinlongmen railway tunnel.The harmfulness and the composition of the pollutant gases are expounded.The amount of pollutant is calculated according to the tractive power of locomotives.The main factors incorporated in the analysis, which affect the pollutant distribution, are the meeting position of trains in tunnel, the working time of jet fans and the direction of air flows. Based on the numerical analysis, an advantageous operating mode is suggested. |
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| Keywords: | ventilation of railway tunnel pollutant concentration numerical analysis |
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