摘要
高速列车进入隧道时洞口产生的压力瞬变既是隧道出口的噪音源 ,又是影响旅客舒适度的一个主要因素。文章用FLUENT三维流体数值模拟软件 ,模拟出洞口压力场的变化 ,解释了这一瞬变压力的产生机理 。
The transient pressure change at the portal induced by a high-speed train moving into a tunnel comprises both the noise resource at tunnel exits and a main factor impacting the travelers' comfort. In this paper, the mechanism of transient pressure is explained by simulating the change in the portal pressure field with a three-dimension numerical simulation software-FLUENT, which can provide the theoretical basis for further research on new-style portals of high-speed railway tunnels.
出处
《现代隧道技术》
EI
2003年第3期11-13,共3页
Modern Tunnelling Technology
基金
国家自然科学基金资助项目 ( 5 0 1780 60 )
关键词
高速列车
隧道
瞬变压力
三维数值模拟
High-speed train
Tunnel
Transient pressure
Three-dimension numerical simulation
