主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2021, Vol. 40 ›› Issue (3): 352-355.

• • 上一篇    下一篇

类矩形地铁区间隧道活塞效应特性数值分析

黄文昕1，路世昌2，苗妤1，赵伟3，姜学鹏4   

  1. 1. 宁波市轨道交通集团有限公司，浙江宁波315101；2. 应急管理部天津消防研究所，天津300381；3. 中铁第六勘察设计院集团有限公司，天津300308；4. 武汉科技大学资源与环境工程学院，湖北武汉430081
  • 出版日期:2021-03-15 发布日期:2021-03-15
  • 作者简介:黄文昕(1968-)，女，宁波市轨道交通集团有限公司副总工程师，教授级高级工程师，主要从事轨道交通工程机电技术管理及研究，浙江省宁波市鄞州区宁穿路3399 号，315101。

Numerical analysis on piston effect in quasirectangular metro tunnel

HUANG Wen-xin1, LU Shi-chang2, MIAO Yu1, ZHAO Wei3, JIANG Xue-peng4   

  1. 1. Ningbo Rail Transit Group Co., Ltd., Zhejiang Ningbo 315101, China；2. Tianjin Fire Science and Technology Research Institute of MEM, Tianjin 300381, China；3. China Railway Liuyuan Group Co., Ltd., Tianjin 300308，China; 4. School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Hubei Wuhan 430081, China
  • Online:2021-03-15 Published:2021-03-15

摘要：

利用Fluent 软件对无防火门的类矩形隧道在不同车速、不同联络通道布置下的活塞效应进行模拟分析。结果表明：隧道内活塞效应与车速呈正相关；无防火门时，单线列车运行会通过联络通道导致另外一侧隧道内产生小于2 m/s 的流场变化；设置两个联络通道时，联络通道中心处流速在列车通过时会出现较大浮动，且左侧流速始终比右侧小；受车头压缩波、车尾膨胀波和联络通道口的影响，车头压力呈现先递减，后递增，经过联络通道口后又递减的规律。

关键词: 类矩形区间隧道, 联络通道, 活塞效应, 数值模拟

Abstract: he fluent software is used to simulate and analyze the piston effect of quasi- rectangular tunnel without fire door under different speeds and different arrangement of connecting passage. The results show that: There is a positive correlation between piston effect and vehicle speed in the tunnel; When there is no fire door, a single line train passes through the connecting channel, resulting in a flow field change of less than 2 m/s in the other side of the tunnel; When two connecting channels are set, the flow velocity in the center of the connecting channel will fluctuate greatly when the train passes through, and the flow velocity on the left side is always smaller than that on the right side; Under the influence of the expansion wave at the rear of the vehicle and the connecting passage, the pressure at the front of the vehicle first decreases, then increases, and then decreases after passing through the connecting passage. 

Key words:

quasi- rectangular tunnel, connecting passage, piston effect, numerical simulation  ,