| 两列车在隧道中交会期间的压力瞬变的数值计算 |
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| 引用本文： | 赵海恒,黄美荣.两列车在隧道中交会期间的压力瞬变的数值计算[J].西南交通大学学报,1999,34(2):127-132. |
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| 作者姓名： | 赵海恒 黄美荣 |
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| 作者单位： | 西南交通大学机械工程学院 |
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| 基金项目： | 铁道部科技发展计划项目 |
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| 摘 要： | 以一维可压缩不稳定等熵流理论为基础提出了一个种适用范围较为广泛的计算会车期间压力瞬变的方法。建立了模拟会车期间流动的边界条件方程，提出了一种新的跟踪列车运动的网格系统。通过与实测的会一期间压力瞬变曲线对比，验证了本文中提出了的方法。并对会车期间的压力瞬变的特征进行了讨论和分析。
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| 关 键 词： | 高速列车 隧道 压力瞬态 会车 数值计算 列车 |
Numerical Computation of Pressure Transients During the Crossing of Two Trains in a Tunnel |
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| Zhao Haiheng,Huang Meirong,Wang Yunshi.Numerical Computation of Pressure Transients During the Crossing of Two Trains in a Tunnel[J].Journal of Southwest Jiaotong University,1999,34(2):127-132. |
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| Authors: | Zhao Haiheng Huang Meirong Wang Yunshi |
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| Abstract: | A widely applicable calculation method for the prediction of pressure transients during the train crossing in a railway tunnel is proposed based on one dimensional unsteady compressible homentropic flow theory. Equations of boundary conditions are built for modeling the flow during the crossing period, and a new grid system for tracking the motion of trains is proposed. The proposed method is verified by comparing it with the practically measured pressure transients. The characteristics of the pressure transients during train crossing are also discussed. |
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| Keywords: | tunnels pressure transient values high speed train train crossing |
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