Analysis of aerodynamic effects and load spectrum characteristics in high-speed railway tunnels

doi:10.1016/j.jweia.2021.104729

IMECH-IR > 流固耦合系统力学重点实验室

	Analysis of aerodynamic effects and load spectrum characteristics in high-speed railway tunnels
	Li, Feilong 1,2; Luo, Jianjun 1,2; Wang, Lei 1,2; Guo DL(郭迪龙)3 ; Gao, Liping 1,2
通讯作者	Luo, Jianjun(jjluo@bjtu.edu.cn)
发表期刊	JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
	2021-05-01
卷号	212 页码:14
ISSN	0167-6105
摘要	To study the aerodynamic effects and load spectra caused by high-speed trains passing through double-track tunnels, this paper uses unsteady, viscous, compressible Navier-Stokes equations and the Re-Normalization Group k-e turbulence model with sliding grid technology for simulation. A dynamic model test is carried out to verify the calculation method and grid. This study considers the impact of the three main factors of the tunnel aerodynamic effect when the train passes through the tunnel. The peak of the aerodynamic load spectrum when the train is coupled to the tunnel is mainly concentrated in the range of 0-5 Hz. The results show that as the train speed increases, the peak pressure and pressure gradient increase significantly, and the maximum pressure gradient appears in the time between the peak and trough of the head wave. When two trains meet in the middle of the tunnel, the peak pressure and its position change significantly, and the maximum pressure gradient peaks reach 80.58 kPa/s. When two trains exit the tunnel, the pressure presents a fixed period of fluctuations, and the maximum pressure peak is only 0.09 kPa less than the peak when a single train passes through the tunnel at the same monitoring point.
关键词	High-speed train Tunnel wall Peak pressure Pressure gradient
DOI	10.1016/j.jweia.2021.104729
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000687253900002
关键词[WOS]	NUMERICAL-SIMULATION ; FIELD-MEASUREMENTS ; PRESSURE WAVE ; TRAINS ; LENGTH
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Civil ; Mechanics
资助项目	National Natural Science Foundation of China[51878038] ; National Natural Science Foundation of China[51678036]
项目资助者	National Natural Science Foundation of China
论文分区	二类/Q1
力学所作者排名	3+
RpAuthor	Luo, Jianjun
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/87270
专题	流固耦合系统力学重点实验室
作者单位	1.Beijing Jiaotong Univ, Key Lab Urban Underground Engn, Minist Educ, 3 Shangyuancun, Beijing 100044, Peoples R China; 2.Beijing Jiaotong Univ, Beijings Key Lab Struct Wind Engn & Urban Wind En, Beijing 100044, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Feilong,Luo, Jianjun,Wang, Lei,et al. Analysis of aerodynamic effects and load spectrum characteristics in high-speed railway tunnels[J]. JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS,2021,212:14.
APA	Li, Feilong,Luo, Jianjun,Wang, Lei,郭迪龙,&Gao, Liping.(2021).Analysis of aerodynamic effects and load spectrum characteristics in high-speed railway tunnels.JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS,212,14.
MLA	Li, Feilong,et al."Analysis of aerodynamic effects and load spectrum characteristics in high-speed railway tunnels".JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS 212(2021):14.

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