| 隧道阻塞比对列车进入隧道产生的气动效应的影响 |
| |
| 引用本文： | 王英学,高波,杨奎,张兆杰.隧道阻塞比对列车进入隧道产生的气动效应的影响[J].实验流体力学,2006,20(4):30-32. |
| |
| 作者姓名： | 王英学 高波 杨奎 张兆杰 |
| |
| 作者单位： | 西南交通大学土木学院,四川,成都,610031 |
| |
| 基金项目： | 国家自然科学基金项目(项目号50178060) |
| |
| 摘 要： | 高速列车在进出隧道时,会形成压缩波和微压波,引起车厢内压力变化并在隧道出口形成噪声,对乘客及环境造成影响。隧道阻塞比对气动效应的产生有非常重要的影响。利用高速列车模型实验系统,对列车进入隧道所形成的压缩波、微压波进行了测试分析,验证了压缩波的隧道阻塞比影响系数值,初步确定了阻塞比与微压波压力的理论关系,依据实验结果,确定了微压波的阻塞比影响系数的范围。
|
| 关 键 词： | 高速列车 空气动力学 隧道 微压波 阻塞比 |
| 文章编号： | 1672-9897（2006）04-0030-03 |
| 收稿时间： | 2005-11-15 |
| 修稿时间： | 2006-04-10 |
Train-tunnel dimension ratio effect on the aerodynamics phenomenon created by train entering tunnel |
| |
| WANG Ying-xue,GAO Bo,YANG Kui,ZHANG Zhao-jie.Train-tunnel dimension ratio effect on the aerodynamics phenomenon created by train entering tunnel[J].Experiments and Measur in Fluid Mechanics,2006,20(4):30-32. |
| |
| Authors: | WANG Ying-xue GAO Bo YANG Kui ZHANG Zhao-jie |
| |
| Institution: | Civil Engineering Dept., Southwest Jiaotong University, Chengdu 610031, China |
| |
| Abstract: | When high-speed train entering tunnel, compression wave and micro-pressure wave will be created, which will result in the pressure fluctuation in carriages and noises at the tunnel exit. Train-tunnel dimension ratio has much effect on these phenomenon. Using the high-speed model experiment method, the compression and micro-pressure wave were measured and analyzed. The train-tunnel dimension ratio effect coefficient to the compression wave was verified. The initial function between train-tunnel dimension ratio and micro -pressure wave was built, and effect coefficient--the train-tunnel dimension ratio to the compression wave was got. |
| |
| Keywords: | high-speed train aerodynamics tunnel micro-pressure wave train-tunnel dimension ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
