Aerodynamic performance and flow evolution of a high-speed train exiting a tunnel with crosswinds
文献类型：期刊论文
| 作者 | Wang, Lei3,4; Luo, Jianjun3,4; Li, Feilong3,4; Guo DL(郭迪龙)1,2 ; Gao, Liping3,4; Wang, Dengke3,4
|
| 刊名 | JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 218页码:14 |
| 关键词 | High-speed train (HST) Crosswinds Aerodynamic performance Computational fluid dynamics (CFD) |
| ISSN号 | 0167-6105 |
| DOI | 10.1016/j.jweia.2021.104786 |
| 通讯作者 | Luo, Jianjun(jjluo@bjtu.edu.cn) |
| 英文摘要 | 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. |
| 分类号 | 二类/Q1 |
| WOS关键词 | WIND CONDITIONS ; RAIL VEHICLES ; AMBIENT WIND ; MODEL ; STABILITY ; BRIDGE ; SIMULATION ; FORCES ; LOADS |
| 资助项目 | National Natural Science Foundation of China[51878038] ; National Natural Science Foundation of China[51678036] |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000709288300001 |
| 资助机构 | National Natural Science Foundation of China |
| 其他责任者 | Luo, Jianjun |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/87783]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 3.Beijing Jiaotong Univ, Beijings Key Lab Struct Wind Engn & Urban Wind En, Beijing 100044, Peoples R China; 4.Beijing Jiaotong Univ, Key Lab Urban Underground Engn, Minist Educ, 3 Shangyuancun, Beijing 100044, Peoples R China; |
| 推荐引用方式 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. |
| 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. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。