| Influence of the topological structures of the nose of high-speed maglev train on aerodynamic performances | |
Wang YT(王业腾); Sun ZX(孙振旭)
| |
| Source Publication | American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM |
| 2021 | |
| Conference Name | Fluids Engineering Division Summer Meeting, FEDSM 2021 |
| Conference Date | 10 August 2021 到 12 August 2021 |
| Conference Place | Virtual, Online |
| Abstract | In the past few years, considerable attention has been paid to high-speed maglev train in the field of rail transit. The design speed of the high-speed maglev train is 600km/h, which is significantly higher than that of the high-speed train. With the increase in operating speed, high-speed maglev trains have higher requirements for aerodynamic shape. Superior performance, the beautiful aerodynamic shape is an important direction for the development of high-speed maglev trains. Based on the Vehicle Modeling Function (VMF) method, the current research has developed a parametric shape design method suitable for the aerodynamic shape of the maglev train s nose. This method can obtain different topological structures of the high-speed maglev train s nose. The current research uses this method to generate four maglev train noses with large appearance differences and uses these train noses to construct four simplified high-speed maglev models. Then this study numerically analyzes the flow fields of different train models and compares the differences in aerodynamic performance including aerodynamic drag, aerodynamic lift and wake characteristics. The Q-criterion is used to study the vortex structure and mechanism of different train wake regions, and the vortex propagation process is studied by turbulence kinetic energy (TKE). Studying the difference in the aerodynamic force of different topological shapes will help to improve the aerodynamic performance of high-speed maglev trains. © 2021 American Society of Mechanical Engineers (ASME). All rights reserved. |
| Keyword | Aerodynamic performance High-speed Maglev train Topological structures VMF parameterization method Wake characteristics |
| URL | 查看原文 |
| Indexed By | EI |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/87797 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China 2.University of Chinese Academy of Sciences, UCAS, Beijing, China |
| Recommended Citation GB/T 7714 | Wang YT,Sun ZX. Influence of the topological structures of the nose of high-speed maglev train on aerodynamic performances[C]American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM,2021. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| 65711.pdf（3069KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment