| Analysis of aerodynamic effects and load spectrum characteristics in high-speed railway tunnels | |
Li, Feilong1,2; Luo, Jianjun1,2; Wang, Lei1,2; Guo DL(郭迪龙)3 ; Gao, Liping1,2
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| Corresponding Author | Luo, Jianjun(jjluo@bjtu.edu.cn) |
| Source Publication | JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
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| 2021-05-01 | |
| Volume | 212Pages:14 |
| ISSN | 0167-6105 |
| Abstract | 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. |
| Keyword | High-speed train Tunnel wall Peak pressure Pressure gradient |
| DOI | 10.1016/j.jweia.2021.104729 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000687253900002 |
| WOS Keyword | NUMERICAL-SIMULATION ; FIELD-MEASUREMENTS ; PRESSURE WAVE ; TRAINS ; LENGTH |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Civil ; Mechanics |
| Funding Project | National Natural Science Foundation of China[51878038] ; National Natural Science Foundation of China[51678036] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 二类/Q1 |
| Ranking | 3+ |
| Contributor | Luo, Jianjun |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/87270 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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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| Jp2021F354.pdf（3443KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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