NUMERICAL ANALYSIS ON DRAG REDUCTION OF HIGH-SPEED TRAIN USING ROUGH SURFACE

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	NUMERICAL ANALYSIS ON DRAG REDUCTION OF HIGH-SPEED TRAIN USING ROUGH SURFACE
	Yin B(银波); Yang GW(杨国伟)
	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.
会议录	PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2018, VOL 2
资助机构	National Key RD Plan of China [SQ2016YFGX030096]
语种	英语
ISBN号	978-0-7918-5156-2
WOS记录号	WOS:000457516200045
内容类型	会议论文
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.