|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2011年12期
| 标题 |
| 高速铁路隧道横通道气动效应研究(51卷) |
| 英文标题 |
| Study on aerodynamic effects in cross passage of high speed railway tunnel |
| 摘要 |
| 利用三维、可压缩、非定常的N—S方程和k—ε 双方程湍流模型，通过有限体积法进行区域离散，对高速列车通过无横通道隧道和设置有横通道的双洞单线隧道时所引起的气动效应进行模拟。研究表明：横通道能有效减缓高速列车进入隧道时引起的气动效应；横通道的横截面积、长度以及个数等参数对其减缓气动效应有着重要的影响；随着横通道个数的增加，最后一个横通道附近测点的压力梯度峰值随横通道个数的增加逐渐减小，洞外微压波压力值亦随之逐渐削减。 |
| 作者 |
| 新闻作者:戴文，高波，赵文成 |
| 关键字 |
