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真空 ›› 2022, Vol. 59 ›› Issue (5): 55-62.doi: 10.13385/j.cnki.vacuum.2022.05.10

• 真空获得与设备 • 上一篇    下一篇

超声速运行时管道列车激波特性分析*

黄尊地, 伊严严, 常宁   

  1. 五邑大学轨道交通学院,广东 江门 529020
  • 收稿日期:2022-01-11 出版日期:2022-09-25 发布日期:2022-09-28
  • 通讯作者: 常宁,硕士,讲师。
  • 作者简介:黄尊地（1987-）,男,山东省济宁市人,博士,副教授。
  • 基金资助:
    *国家重点研发计划项目“先进轨道交通”重点专项（2018YFB1201701-07）,广东省基础与应用基础研究基金联合基金—青年基金项目（2019A1515111052）

Analysis on Shock Wave Characteristics of Supersonic Train Running in Tube

HUANG Zun-di, YI Yan-yan, CHANG Ning   

  1. School of Rail Transportation, Wuyi University, Jiangmen 529020, China
  • Received:2022-01-11 Online:2022-09-25 Published:2022-09-28

摘要： 空气已经成为高速列车进一步提速的关键制约因素之一,为发展下一代更高速的交通运输系统,低真空管道和超高速列车结合的创新性交通运输系统构想得以提出和发展。本文建立管道列车二维计算模型,基于验证的网格和湍流模型开展超声速列车运行管道激波特性分析。结果表明：超声速列车运行时,列车前方激波以正激波形式形成壅塞区段向前推进;正激波位置随运行时间前移,压力激增的位置同步前移,但激波前后的压升比值基本不变;运行时间和运行马赫数影响壅塞区段长度;激波会在管道和列车车体之间以及尾流区域进行多次马赫反射形成激波串,随着运行时间的增长,管道车体之间激波减弱,车尾激波及反射激波强度增强。

关键词: 超声速, 管道列车, 激波特性, 正激波, 激波反射

Abstract: Air has become one of the key constraints for the further acceleration of high-speed trains.In order to develop the next generation of higher-speed transportation systems, an innovative transportation system concept combining low-vacuum pipes and ultra-high-speed trains has been proposed and developed. In this paper, a two-dimensional calculation model of the tube train is established, and the shock wave characteristics of the supersonic train running in tube are analyzed based on the verified grid and turbulence model. It is concluded that when the supersonic train is running, the shock wave in front of the train forms a congested section forward in the form of a normal shock wave. The position of the normal shock wave moves forward with the running time, and the position of the pressure surge moves forward synchronously, but the pressure rise ratio before and after the shock wave is basically unchanged. The running time and the running Mach number affect the length of the congested section. The shock wave will undergo multiple Mach reflections between the tube and the train body and in the wake area to form a shock wave train. As the running time increases, the shock wave between the tube and train body weakens, and the intensity of the shock wave and reflected shock wave at the rear of the train is strengthened.

Key words: supersonic speed, tube train, shock wave characteristic, normal shock wave, shock wave reflection

中图分类号: 

  • U171
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