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。笔者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,对不同长度喇叭型缓冲结构削减微压波效果进行了比较,得到了有关微压波产生、传播以及缓冲结构缓解微压波效果的规律。
When high-speed train passing through tunnel, compression wave and micro- compression wave will be created, which will result in the pressure fluctuation in carriages and noises at the tunnel exit. At the same time, the passengers will feel uncomfortable and the environment around the tunnel exit also be affected. Using the high-speed train model experiment system, the compression wave and micro- compression wave was measured. The different length of flaring tunnel hood reducing micro- compression wave affect was compared. Some principal on the compression wave and micro -wave transformation and tunnel hood reducing micro- compression wave affect was drawn out.
出处
《实验流体力学》
EI
CAS
CSCD
北大核心
2006年第1期5-8,共4页
Journal of Experiments in Fluid Mechanics
基金
国家自然科学基金项目(50178060)
关键词
高速列车
空气动力学
隧道
微压波
high-speed train
aerodynamics
tunnel
micro-compression wave
