隧道阻塞比对列车进入隧道产生的气动效应的影响  

Train-tunnel dimension ratio effect on the aerodynamics phenomenon created by train entering tunnel

作　　者：王英学[1] 高波[1] 杨奎[1] 张兆杰[1] 

机构地区：[1]西南交通大学土木学院,四川成都610031

出　　处：《实验流体力学》2006年第4期30-32,共3页Journal of Experiments in Fluid Mechanics

基　　金：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。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.

关 键 词：高速列车 空气动力学 隧道 微压波 阻塞比 

分 类 号：V211.7[航空宇航科学与技术—航空宇航推进理论与工程]