Effects of detailed shape of air-shaft entrance hood on tunnel pressure waves

Citations

WEB OF SCIENCE

3

초록

Air-shaft entrance hood model with fence is investigated to reduce micro pressure wave in a single-track tunnel of the high-speed railway. Aerodynamically designed airshaft hoods are classified by 5 cases according to fence types and the micro pressure waves are measured by the low frequency sound level meters installed at a tunnel exit of a moving model test rig with a scale ratio of 1/64. Based on the case of no hood model, 5 different hood models were tested and analyzed for the speed of a model train from 180 km/h to 250 km/h.

키워드

Moving model rigCompressible flowHigh-speed railwayMicro pressure waveAir-shaft hoodTunnel pressure waves
제목
Effects of detailed shape of air-shaft entrance hood on tunnel pressure waves
저자
Kim, Dong HyeonSeo, Yong CheolKim, Tae HoKim, Heuy Dong
DOI
10.1007/s12206-021-0121-3
발행일
2021-02
유형
Article
저널명
Journal of Mechanical Science and Technology
35
2
페이지
615 ~ 624