Journal of Jilin University(Engineering and Technology Edition) ›› 2019, Vol. 49 ›› Issue (4): 1054-1062.doi: 10.13229/j.cnki.jdxbgxb20180172

Previous Articles    

Pressure pulse on windbreak impacting by cross⁃wind coupling with high⁃speed trains passing each other

Run⁃dong LIU1(),Jun MAO1(),Yan⁃hong XI1,Hong⁃yu ZHANG1,Fei PENG2   

  1. 1. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044，China
    2. People Air Defense Office of Gushi County of Henan Province, Xinyang 465200，China
  • Received:2018-02-16 Online:2019-07-01 Published:2019-07-16
  • Contact: Jun MAO E-mail:14115264@bjtu.edu.cn;jmao@bjtu.edu.cn

RICH HTML

 6   

PDF (PC)

178

Abstract:

The pressure pulse caused by high?speed trains passing each other produces aerodynamic impact on the windbreak, that may result in structural instability of the windbreak and bring security risks to the train. Taking CRH3 as the research object, the pressure pulse on windbreak impacting by different wind speed and different train speed were studied by simulation. In the simulation, the overset mesh method, which can simulate the real train movement, and the chamber energy dissipation windbreak, which retains the hole characteristics, are used. The results show that the pressure pulse around high?speed train presents “positive?negative?negative?positive” trend. The pressure pulses of two trains couple with each other and act on the windbreak on the side of the line. With the train speed increasing, the pressure extremum increases, the commutation time reduces and the rate of change increases. With the wind speed increasing, the cross?wind coupling with the train wind amplifies the negative pressure inside the windbreak. The positive pressure extremum is outside the length of the train and the negative pressure extremum is inside the length of the train. The position of the positive pressure extremum is nearest to the nose cone of the head train. The pressure extremum will move backward under cross?wind.

Key words: vehicle engineering, high?speed train, windbreak, pressure pulse from trains passing each other, overset mesh

CLC Number: 

  • U270

Fig.1

Computational domain"

Fig.2

Computational mesh"

Fig.3

Schematic diagram of overset mesh computational domain"

Fig.4

Schematic diagram of data exchange"

Fig.5

Comparison between model test and numerical calculation"

Fig.6

Pressure comparison between high?speed train passing each other and one train through"

Table 1

Computational cases"

编号 车速/(km?h-1) 风速/(m?s-1)
A 200,250,300,350,400 0,30
B 350 5,10,15,25,30

Fig.7

Pressure cloud of train passing each other and windbreak"

Fig.8

Streamlines of train passing each other and windbreak"

Fig. 9

Velocity vector diagram"

Fig. 10

Pressure cloud on windbreak"

Fig. 11

Schematic diagram of onitoring points location"

Fig. 12

Pressure?time curve of P16 with different train speeds(inside windbreak)"

Fig. 13

Pressure?time curve of P5 with different train speeds(outside windbreak)"

Fig. 14

Pressure?time curve of P5 and P16 with different wind speeds(inside and outside windbreak)"

Fig.15

"

Fig.16

Relative positional relationship between pressure peak and train"

Table 3

Coordinates of pressure peak and train m"

无横风 有横风
车头鼻锥 -10.5 -10.5
头车波峰 -10.2 -10.5
头车波谷 -17.5 -18.3
车尾鼻锥 -87 -87
尾车波谷 -82.5 -83.9
尾车波峰 -89.9 -89.8
1 Baker C . The flow around high speed trains[J]. Journal of Wind Engineering & Industrial Aerodynamics, 2010, 98(6/7): 277⁃298.
2 Liu J L . Computations of two passing⁃by high⁃speed trains by a relaxation overset⁃grid algorithm[J]. International Journal for Numerical Methods in Fluids, 2004, 44(12): 1299⁃1315.
3 Bourdin P , Wilson J D . Windbreak aerodynamics: is computational fluid dynamics reliable[J]. Boundary⁃Layer Meteorology, 2008, 126(2): 181⁃208.
4 李人宪, 赵晶, 刘杰, 等 . 高速列车会车压力波对侧窗的影响[J]. 机械工程学报, 2010, 46(4): 87⁃92.
Li Ren⁃xian , Zhao Jing , Liu Jie , et al . Influence of air pre⁃ssure pulse on side windows of high⁃speed trains passing each other[J]. Journal of Mechanical Engineering, 2010, 46(4): 87⁃92.
5 刘小燕, 陈春俊, 何洪阳 . 高速列车隧道会车时气动载荷的研究[J]. 机械设计与制造, 2014(11): 161⁃164.
Liu Xiao⁃yan , Chen Chun⁃jun , He Hong⁃yang . Study on aerodynamic loads of high⁃speed train crossing through a tunnel[J]. Machinery Design and Manufacture, 2014(11): 161⁃164.
6 许建林, 孙建成, 梅元贵, 等 . 高速列车隧道内交会压力波基本特性数值模拟研究[J]. 振动与冲击, 2016, 35(3): 184⁃191.
Xu Jian⁃lin , Sun Jian⁃cheng , Mei Yuan⁃gui , et al . Numerical simulation on crossing pressure wave characteristics of two high⁃speed trains in tunnel[J]. Journal of Vibration and Shock, 2016, 35(3): 184⁃191.
7 郗艳红, 毛军, 柳润东, 等 . 高速列车明线会车压力波波幅研究[J]. 华南理工大学学报:自然科学版, 2016, 44(3): 118⁃127.
Xi Yan⁃hong , Mao Jun , Liu Run⁃dong , et al . Study on aerodynamic loads of high⁃speed train crossing through a tunnel[J]. Journal of South China University of Technology (Natural Science Edition), 2016, 44(3): 118⁃127.
8 何旭辉, 邹云峰, 杜风宇 . 风屏障对高架桥上列车气动特性影响机理分析[J]. 振动与冲击, 2015, 34(3): 66⁃71.
He Xu⁃hui , Zou Yun⁃feng , Du Feng⁃yu . Mechanism analysis of wind barrier's effects on aerodynamic characteristics of a train on viaduct[J]. Journal of Vibration and Shock, 2015, 34(3): 66⁃71.
9 刘峰, 姚松, 张洁, 等 . 动车组横风环境下的交会气动效应[J]. 中南大学学报:自然科学版, 2016, 47(1): 307⁃313.
Liu Feng , Yao Song , Zhang Jie , et al . Aerodynamic effect of EMU passing by each other under crosswind[J]. Journal of Central South University (Science and Technology) 2016, 47(1): 307⁃313.
10 李波, 杨庆山, 冯少华 . 防风栅对高速列车挡风作用的数值模拟[J]. 工程力学, 2015, 32(12): 249⁃256.
Li Bo , Yang Qing⁃shan , Feng Shao⁃hua . Windbreak performance of wind fence on high speed train based on numerical simulation[J]. Engineering Mechanics, 2015, 32(12): 249⁃256.
11 Khier W , Breuer M , Durst F . Flow structure around trains under side wind conditions: A numerical study[J]. Computers and Fluids, 2000, 29(2): 179⁃195.
12 毛军, 郗艳红, 高亮, 等 . 腔室耗能型高速铁路风障的减载抗风性能[J]. 机械工程学报, 2014, 50(4): 99⁃106.
Mao Jun , Xi Yan⁃hong , Gao Liang , et al . Wind resistance performance of the windbreak with air chambers dissipating energy applied in high⁃speed railway[J]. Journal of Mechanical Engineering, 2014, 50(4): 99⁃106.
13 王福军 . 计算流体动力学分析⁃CFD软件原理与应用[M]. 北京：清华大学出版社, 2004.
14 毛军, 郗艳红, 杨国伟 . 侧风风场特征对高速列车气动性能作用的研究[J]. 铁道学报, 2011, 33(4): 22⁃30.
Mao Jun , Xi Yan⁃hong , Yang Guo⁃wei . Research on influence of characteristics of cross wind field on aerodynamic performance of a high⁃speed train[J]. Journal of the China Railway Society, 2011, 33(4): 22⁃30.
[1] Jing LI,Qiu⁃jun SHI,Peng LIU,Ya⁃wei HU. Neural network sliding mode control of commercial vehicle ABS based on longitudinal vehicle speed estimation [J]. Journal of Jilin University(Engineering and Technology Edition), 2019, 49(4): 1017-1025.
[2] Shun YANG,Yuan⁃de JIANG,Jian WU,Hai⁃zhen LIU. Autonomous driving policy learning based on deep reinforcement learning and multi⁃type sensor data [J]. Journal of Jilin University(Engineering and Technology Edition), 2019, 49(4): 1026-1033.
[3] Xin CHEN,Ming LI,Xin⁃jian RUAN,Ning WANG,Jia⁃ning WANG. Investigation of vortical structures in wake of Ahmed body by delayed detached⁃eddy simulation turbulence model using immersed boundary method [J]. Journal of Jilin University(Engineering and Technology Edition), 2019, 49(4): 1034-1042.
[4] Hua ZHOU,Zhi⁃gang YANG,Hui ZHU. Aerodynamic calculation of MIRA model correlated with wind tunnel test [J]. Journal of Jilin University(Engineering and Technology Edition), 2019, 49(4): 1043-1053.
[5] CHANG Cheng,SONG Chuan-xue,ZHANG Ya-ge,SHAO Yu-long,ZHOU Fang. Minimizing inverter capacity of doubly-fed machine driving electric vehicles [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1629-1635.
[6] XI Li-he,ZHANG Xin,SUN Chuan-yang,WANG Ze-xing,JIANG Tao. Adaptive energy management strategy for extended range electric vehicle [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1636-1644.
[7] HE Ren,YANG Liu,HU Dong-hai. Design and analysis of refrigeration system supplied by solar auxiliary power of refrigerator car [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1645-1652.
[8] NA Jing-xin,MU Wen-long,FAN Yi-sa,TAN Wei,YANG Jia-zhou. Effect of hygrothermal aging on steel-aluminum adhesive joints for automotive applications [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1653-1660.
[9] LIU Yu-mei,LIU Li,CAO Xiao-ning,XIONG Ming-ye,ZHUANG Jiao-jiao. Construction on collision avoidance model of bogie dynamic simulation test bench [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1661-1668.
[10] ZHAO Wei-qiang, GAO Ke, WANG Wen-bin. Prevention of instability control of commercial vehicle based on electric-hydraulic coupling steering system [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1305-1312.
[11] SONG Da-feng, WU Xi-tao, ZENG Xiao-hua, YANG Nan-nan, LI Wen-yuan. Life cycle cost analysis of mild hybrid heavy truck based on theoretical fuel consumption model [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1313-1323.
[12] ZHU Jian-feng, ZHANG Jun-yuan, CHEN Xiao-kai, HONG Guang-hui, SONG Zheng-chao, CAO Jie. Design modification for automotive body structure based on seat pull safety performance [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1324-1330.
[13] NA Jing-xin, PU Lei-xin, FAN Yi-sa, SHEN Chuan-liang. Effect of temperature and humidity on the failure strength of Sikaflex-265 aluminum adhesive joints [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1331-1338.
[14] WANG Yan, GAO Qing, WANG Guo-hua, ZHANG Tian-shi, YUAN Meng. Simulation of mixed inner air-flow integrated thermal management with temperature uniformity of Li-ion battery [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1339-1348.
[15] JIN Li-sheng, XIE Xian-yi, GAO Lin-lin, GUO Bai-cang. Distributed electric vehicle stability control based on quadratic programming [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1349-1359.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Engineering and Technology Edition), All Rights Reserved.
Tel: +86-431-85095297　Fax: +86-431-85094074　E-mail: xbgxb@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd