Study on Aerodynamic Performance of Maglev Train Passing by Each Other at Constant Speed
文献类型：期刊论文
| 作者 | Yu M(于淼); Zhu BN(祝百年); Liang YT(梁永廷); Hao ZZ(郝占宙) ; Yin B(银波)
|
| 刊名 | 力学研究
 |
| 出版日期 | 2021-04-12 |
| 期号 | 2 |
| 关键词 | 磁悬浮列车 列车交会 气动力 气动升力 振荡 Maglev Train Train Passing by Each Other Aerodynamic Force Aerodynamic Lift Oscillation |
| 英文摘要 | As the next generation of high-speed rail transportation, the high-speed maglev train has a design speed of 600 km/h and a Mach number of about 0.49. The complex aerodynamic effects caused by such a high speed have a significant impact on the stability and safety of train operation. This paper uses numerical simulation to study the aerodynamic drag, lift, and side force acting on different carriages of the three-carriage maglev trains when they passing by each other at the same speed. In this study, the sliding mesh method and the k-ε turbulence model are used, and a user-defined function is compiled to determine the moving speed of the maglev train. The results show that the aerodynamic lift has very strong instability during the operation of the train, which is the main factor affecting the stable operation of the train. Its oscillation is mainly derived from the unstable lift at the bottom of the train, and the aerodynamic lift on the tail car is much larger than the head car. When two cars passing by each other, the aerodynamic drag of the train does not change synchronously with the aerodynamic lift and side force, and the influence on the lower part of the aerodynamic lift is greater than the influence on the upper part of the aerodynamic lift. |
| 语种 | 中文 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/88518]  |
| 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.中国科学院力学研究所，北京 2.中车唐山机车车辆有限公司，河北 唐山 |
| 推荐引用方式 GB/T 7714 | Yu M,Zhu BN,Liang YT,et al. Study on Aerodynamic Performance of Maglev Train Passing by Each Other at Constant Speed[J]. 力学研究,2021(2). |
| APA | 于淼,祝百年,梁永廷,郝占宙,&银波.(2021).Study on Aerodynamic Performance of Maglev Train Passing by Each Other at Constant Speed.力学研究(2). |
| MLA | 于淼,et al."Study on Aerodynamic Performance of Maglev Train Passing by Each Other at Constant Speed".力学研究 .2(2021). |
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。