摘要
综述国外关于高速列车进出隧道时产生的压力波、压力波变化剃度、形成机理、计算方法、实验方法方面的研究成果以及减少压力波的解决方案,如选取较大的隧道断面,减低阻塞比、修建缓解压力波的附属构筑物等。但对该问题的研究,还存在理论分析不完善、实际造价昂贵等问题。为深入研究上述问题,建立了高速列车空气动力学分析系统。通过对数值模拟与初期实验结果比较,两者能较好地吻合,表明该实验系统运行正常,能够满足对高速列车实验研究的需要。
The paper summarizes the achievements on the researches of the barometric waves, minute barometric wave occurred when highspeed trains passing in and out tunnels, the formation mechanism, calculation method, experiment method as well as the solutions for reducing barometric wave, i.e., choosing larger tunnel profile, reducing obstruction ratio,and constructing affiliated structures to release barometric wave. There are some problems existing in the research concerning the improper theoretical analysis and high actual costs. An analysis system for aerodynamics of highspeed train has been set up for further research. After the comparison between numerical simulation and preliminary experiment results, it is found that the two match well. It shows that the experiment system functions normal, meeting the demand of experiment and research on highspeed train.
出处
《中国铁道科学》
EI
CAS
CSCD
北大核心
2003年第2期83-88,共6页
China Railway Science
基金
国家自然科学基金项目(50178060)
