| 耿烽,张倩.基于传质现象的高速铁路隧道入口压缩波数值分析[J].计算力学学报,2006,23(5):617~622 |
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| 基于传质现象的高速铁路隧道入口压缩波数值分析 |
| Numerical study on generated compression waves produced by high-speed train entering tunnel with mass transfer |
| 修订日期：2004-10-25 |
| DOI：10.7511/jslx20065115 |
| 中文关键词: 高速列车 隧道 压缩波 特征线法 传质 |
| 英文关键词:high-speed train,tunnel,compression waves,method of characteristics,mass fransfer |
| 基金项目:南京工程学院校科研和教改项目 |
| 耿烽 张倩 |
| 南京工程学院机械工程系,江苏南京210013 |
| 摘要点击次数: 1311 |
| 全文下载次数: 8 |
| 中文摘要: |
| 基于一维可压缩非定常不等熵流动理论，认为隧道内空气流通截面是流动时间和流动距离的二元函数，考虑了空气与隧道壁和列车壁之间的摩擦和传热效应，采用广义黎曼特征线法，对高速列车进入存在传质现象的等截面缓冲罩隧道引起的入口压缩波进行了数值计算。另外进行了不同缓冲罩参数的计算，并且对计算结果进行了定性与定量分析，结果说明了相关的空气动力学效应。 |
| 英文摘要: |
| Based on the one-dimensional unsteady compressible non-isentropic flow theory,considering the friction and heat transfer effect,compression waves generated by a high-speed train entering a tunnel with the mass transfer were numerically investigated.The equations in which the area of the tube is dependent on the time and the distance were numerically solved by the characteristic method with generalized Riemann Variable.The calculations were performed for tunnels with various hoods of which porosities and lengths are different.The results which were qualitatively and quantitatively analyzed,show the correlative aerodynamic effect. |
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