实验流体力学2017，Vol.31Issue(5)：39-45,7.DOI:10.11729/syltlx20170002
高速列车隧道通过中的气动效应动模型实验研究
Experimental investigation on the aerodynamics of tunnel-passing for high speed train with a moving model rig
宋军浩 1郭迪龙 1杨国伟 1杨乾锁1
作者信息
- 1. 中国科学院力学研究所 流固耦合系统力学实验室,北京 100190
- 折叠
摘要
Abstract
When a high speed train enters a tunnel,a compressed wave occurs and propagates along the tunnel to the tunnel port,and transforms to be a micro pressure wave.Using the mov-ing model rig experiment system,pressure waves and the micro pressure wave were measured in the double-track tunnel (60m in length)within the speed range of 200-350km/h.Firstly,the va-lidity of experimental data was verified.Secondly,the reduction principle of the initial compres-sion wave propagating in the tunnel and the relationship between the micro pressure wave and the train speed were drawn out.The effect of the streamlined nose shape on the micro pressure wave was studied at last.The experimental results show that in the speed ranges,the dimensionless values of the pressure wave and micro pressure wave are the same with different speeds.Howev-er,the relationship between the micro pressure wave and the streamlined nose length is only ana-lyzed qualitatively,with quantitative relationship difficult to determine.关键词
隧道效应/高速列车/微气压波/压缩波/列车头型Key words
tunnel effect/high speed train/micro pressure wave/compressed wave/stream-line shape分类
数理科学引用本文复制引用
宋军浩,郭迪龙,杨国伟,杨乾锁..高速列车隧道通过中的气动效应动模型实验研究[J].实验流体力学,2017,31(5):39-45,7.
