NUMERICAL ANALYSIS ON DRAG REDUCTION OF HIGH-SPEED TRAIN USING ROUGH SURFACE
文献类型：会议论文
| 作者 | Yin B(银波) ; Yang GW(杨国伟)
|
| 出版日期 | 2018 |
| 会议日期 | JUL 15-20, 2018 |
| 会议地点 | Montreal, CANADA |
| 页码 | V002T11A014 |
| 英文摘要 | Rough surfaces of flying and swimming animals help to reduce the aerodynamic or hydrodynaniic drag when they move in the environment. In this research, biomimetic rough surface is introduced for high-speed train to reduce the aerodynamic drag. CFD tool is used to numerically study how the aerodynamic drag is altered by applying the biomimetic structures to the high-speed train surface. Rough surface is distributed in three areas: pantograph, bogie and windshield areas to reduce the drag at train speed of V = 400km/h. Concave is employed on these areas and orthogonally distributed with diameter of 40mm and center-to center distance from 60mm to 80mm. The drag force is slightly increased/decreased in the pantograph area, while in the bogie and windshield areas rough structures lead to drag reduction with same distribution configuration. For all cases, the amount of shear drag change is much less than the pressure drag change. The total drag reduction mainly comes from pressure change. Rough surface positively contributes to changing the surface flow and thus reducing the aerodynamic drag. |
| 资助机构 | National Key RD Plan of China [SQ2016YFGX030096] |
| 会议录 | PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2018, VOL 2
 |
| 语种 | 英语 |
| ISBN号 | 978-0-7918-5156-2 |
| WOS记录号 | WOS:000457516200045 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/78567]  |
| 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 | {Yin, Bo、Yang, Guowei} Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin B,Yang GW. NUMERICAL ANALYSIS ON DRAG REDUCTION OF HIGH-SPEED TRAIN USING ROUGH SURFACE[C]. 见:. Montreal, CANADA. JUL 15-20, 2018. |
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。