| Aerodynamic performance and flow evolution of a high-speed train exiting a tunnel with crosswinds | |
Wang, Lei1,2; Luo, Jianjun1,2; Li, Feilong1,2; Guo DL(郭迪龙)3,4 ; Gao, Liping1,2; Wang, Dengke1,2
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| Corresponding Author | Luo, Jianjun([email protected]) |
| Source Publication | JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
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| 2021-11-01 | |
| Volume | 218Pages:14 |
| ISSN | 0167-6105 |
| Abstract | Sudden changes in the aerodynamic loads acting on trains can result in derailment or overturning. The impacts of infrastructure scenarios on the aerodynamic performance of trains are significant. When high-speed trains travel from one infrastructure scenario to another one, the aerodynamic loads and flow field will change suddenly. It is a commonly in western China for HSTs to exit a tunnel with crosswinds. In order to investigate the aerodynamic loads and the flow evolution, a three-dimensional, compressible, unsteady Reynolds Averaged Navier-Stokes method was utilized to simulate the process of a train exiting a tunnel under crosswinds. Results show that the flow field and the pressure varied significantly in the horizonal plane while the train exited the tunnel under crosswinds. In addition, the aerodynamic loads of each carriage which varied abruptly resulted in complex dynamic responses of the train including lateral variation, snake-like locomotion, and pitching motion. Furthermore, the variation magnitudes of Delta C-side, Delta C-lift, and Delta C-RM for the head carriage were 4.1, 2.2 and 1.6 times for the middle carriage, and 7.9, 8.1 and 8.2 times for the rear carriage. Therefore, the aerodynamic performance of the head carriage was the worst and the risk of accidents was the highest under crosswinds. |
| Keyword | High-speed train (HST) Crosswinds Aerodynamic performance Computational fluid dynamics (CFD) |
| DOI | 10.1016/j.jweia.2021.104786 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000709288300001 |
| WOS Keyword | WIND CONDITIONS ; RAIL VEHICLES ; AMBIENT WIND ; MODEL ; STABILITY ; BRIDGE ; SIMULATION ; FORCES ; LOADS |
| 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/311007/87784 |
| 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; 4.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Lei,Luo, Jianjun,Li, Feilong,et al. Aerodynamic performance and flow evolution of a high-speed train exiting a tunnel with crosswinds[J]. JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS,2021,218:14.Rp_Au:Luo, Jianjun |
| APA | Wang, Lei,Luo, Jianjun,Li, Feilong,郭迪龙,Gao, Liping,&Wang, Dengke.(2021).Aerodynamic performance and flow evolution of a high-speed train exiting a tunnel with crosswinds.JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS,218,14. |
| MLA | Wang, Lei,et al."Aerodynamic performance and flow evolution of a high-speed train exiting a tunnel with crosswinds".JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS 218(2021):14. |
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| Jp2021F520.pdf（17977KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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