Research on influence of the type of cross wind field on the aerodynamic performance of a high-speed train

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-)

	Research on influence of the type of cross wind field on the aerodynamic performance of a high-speed train
	Xi YH; Mao J; Yang GW(杨国伟); Fang Y
	2012
会议名称	1st International Workshop on High-Speed and Intercity Railways, IWHIR 2011
会议日期	JULY 19-22, 2011
会议地点	Shenzhen, Hong Kong, China
关键词	High-speed train uniform wind lower atmospheric boundary layer numerical simulation aerodynamic characteristics
卷号	LNEE 148
页码	305-317
通讯作者	Xi YH
中文摘要	Characteristic of cross wind field, such as uniform wind and lower atmospheric boundary layer wind, have directly influence on the operation safety of high-speed train which running in cross wind environment. In order to accurately assess its effect on the train running in flat land, flow field and aerodynamic characteristics of the high speed train running at 350 km/h under different wind directions in these two types of Wind field mentioned above were simulated numerically and analyzed. The results show that, for a train running in the condition of the crosswind in flat land, aerodynamic lift, lateral force and overturning moment acting on the train increased rapidly with the wind direction angle increasing; when the train running through the lower atmospheric boundary layer, compared to an uniform wind filed, the pressure difference of the train at top, bottom and two sides were less, lateral force and overturning moment were also less, and aerodynamic lift had some uncertainty when the wind direction angle increased. Using the uniform wind for the operation safety evaluation of high-speed train which running in cross wind environment will overestimate risks the cross wind on the train operation safety, make the safety of the train too low to limit speed, thus affect the normal operation and the traffic efficiency. The lower atmospheric boundary layer wind was suggested to be used for the evaluation of the aerodynamic performance of a train.
收录类别	EI
合作状况	国内
产权排序	1 Civil Institute, Beijing Jiaotong University, Beijing 100044, China; 2 Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
会议主办者	The Hong Kong Polytechnic University,Hong Kong,China
会议网址	http://dx.doi.org/10.1007/978-3-642-27963-8_28
会议录	Proceedings of the 1st International Workshop on High-Speed and Intercity Railways, Vol.2
会议录出版者	Springer Verlag
会议录出版地	Tiergartenstrasse 17, Heidelberg, D-69121, Germany
语种	英语
ISSN号	1876-1100
ISBN号	978-3-642-27962-1
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/46801]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
推荐引用方式 GB/T 7714	Xi YH,Mao J,Yang GW,et al. Research on influence of the type of cross wind field on the aerodynamic performance of a high-speed train[C]. 见:1st International Workshop on High-Speed and Intercity Railways, IWHIR 2011. Shenzhen, Hong Kong, China. JULY 19-22, 2011.http://dx.doi.org/10.1007/978-3-642-27963-8_28.