真空管道高速列车系统中管道压力分布研究  

Pressure Distributions of High-Speed Trains System in Vacuum Tube

作　　者：陈大伟 兰永霞 张司薇 高红霞[2] 朱克勇[2] 刘猛[2] CHEN Dawei;LAN Yongxia;ZHANG Siwei;GAO Hongxia;ZHU Keyong;LIU Meng(Engineering Laboratory,CRRC Qingdao Sifang Company Limited,Qingdao 266111,China;School of Aeronautic Science and Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]中车青岛四方机车车辆股份有限公司工程实验室,山东青岛266111 [2]北京航空航天大学航空科学与工程学院,北京100191

出　　处：《青岛大学学报（工程技术版）》2023年第4期59-64,共6页Journal of Qingdao University(Engineering & Technology Edition)

基　　金：中国中车股份有限公司科技研究开发计划项目(2020CYB110)。

摘　　要：针对真空管道内列车运行对管道压力分布的影响,本文建立了单车运行和两车交汇的真空管道交通系统模型,通过Fluent湍流模型和重叠网格划分技术,得到真空管道交通系统的压力场,分析了压力场的变化规律。结果表明,列车运行速度和阻塞比对管道内压力分布影响较大,管道真空度影响较小,列车表面压力分布受列车运行速度影响较大。两车交汇时,真空管道内压力分布变化较大,达到110kPa/s。该研究为真空管道高速列车系统中管道压力设计提供了理论指导。This paper establishes models of transport system with single train operation and intersection of two trains to investigate the effects of train operation on the pressure distributions in vacuum tube.The pressure distributions in vacuum tube are obtained by Fluent turbulence models and overlapping grid technique and the variation of pressure distributions is analyzed.The results show that the train speed and blocking ratio have great influence on the pressure distributions in vacuum tube,while tube vacuum degree has slight effects.When two trains intersect,the pressure distributions in the vacuum tube changes greatly,reaching 110 kPa/s.These results play a significant role in the design of pressure control in high-speed trains system in vacuum tube.

关 键 词：真空管道列车 压力分布 重叠网格技术 两车交汇 

分 类 号：TB711.1[一般工业技术—真空技术] TB79