| 地铁条件下车体表面压力的变化特性分析 |
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| 引用本文： | 杨伟超,彭立敏,施成华,胡自林.地铁条件下车体表面压力的变化特性分析[J].空气动力学学报,2010,28(1). |
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| 作者姓名： | 杨伟超 彭立敏 施成华 胡自林 |
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| 作者单位： | 1. 中南大学土木建筑学院,湖南,长沙,410075
2. 广州市地下铁道设计研究院,广东,广州,510010 |
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| 摘 要： | 采用高速铁路隧道空气动力效应的研究方法,对地铁内列车的运行过程进行了模拟,分析了地铁条件下车体压力的变化规律,研究了中间风井和区间隧道通风对车体压力的影响。结果说明,当列车时速达到100 km/h时,地铁内就会出现显著的空气动力效应;对于无中间风井的区间隧道,车体压力变化规律与高速铁路类似,设置中间风井可减缓车体压力;采用多个不大于0.5倍隧道有效断面积中间风井的设置措施不仅能满足区间通风要求,也有利于降低车体压力;区间隧道通风只整体平移车体压力,不改变车体压力的幅度。
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| 关 键 词： | 地铁 空气动力效应 压力特性 |
Analysis of static pressure evolution characteristic of subway train wagon |
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| YANG Wei-chao,PENG Li-min,SHI Cheng-hua,HU Zi-lin.Analysis of static pressure evolution characteristic of subway train wagon[J].Acta Aerodynamica Sinica,2010,28(1). |
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| Authors: | YANG Wei-chao PENG Li-min SHI Cheng-hua HU Zi-lin |
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| Institution: | 1 Department of Civil Engineering/a>;Central South University/a>;Changsha 410075/a>;China/a>;2 Guangzhou Metro Design and Research Institute/a>;Guangzhou 510010/a>;China |
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| Abstract: | Based on the analysis method of tunnel aerodynamic effect in high speed railway,the train traveling process in subway was simulated and the static pressure evolution in train wagon was studied.Meanwhile,the influences of the air shaft and ventilation system of tunnel sections on the wagon pressure were discussed in detail.The results show that there is a significant tunnel aerodynamic effect when the train speed reaches 100km/h in subway.The static pressure evolution of train wagon should be consistent with... |
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| Keywords: | subway aerodynamic influence pressure characteristic |
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