IMECH-IR  > 流固耦合系统力学重点实验室
Characteristics of train noise in crosswind conditions
Sun ZX(孙振旭); Yang GW(杨国伟); Guo DL(郭迪龙)
2014
会议名称THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
会议日期8-11 April 2014
会议地点Ajaccio, Corsica, France
会议录名称PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
摘要The aerodynamic loads and noise of high speed trains deteriorate rapidly in crosswind conditions. Typical study usually focuses on the characteristics of aerodynamic loads and corresponding safety issues, while less on the noise characteristics. In the present paper, a hybrid NLAS/FW-H approach has been adopted to investigate the near field and far field noise of high speed trains under different yaw angles. As the root of acoustic field, typical flow phenomena in crosswind conditions has been firstly analyzed, and flow separations and reattachments on the train surface have been discussed in detail. For the near field analysis, the asymmetric characteristics of acoustic field have been studied and the comparison with that in no crosswind conditions has been performed. For the far field analysis, the comparison of the acoustic intensity of probes in the windward and leeward sides has been performed, and a linear relationship between the yaw angle and the acoustic intensity has been obtained. Results in this paper could aid in the study of amenity problem for trains running in complex conditions. © Civil-Comp Press, 2014.
关键词Acoustic fields Acoustic intensity Aerodynamic loads Aerodynamics Flow separation Railroad cars Railroad transportation Railroads Aerodynamic noise Crosswind Detached eddies Flow reattachment Non linear acoustics
ISBN号978-1-905088-59-1
收录类别EI
语种英语
文献类型会议论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77999
专题流固耦合系统力学重点实验室
作者单位Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
推荐引用方式
GB/T 7714
Sun ZX,Yang GW,Guo DL. Characteristics of train noise in crosswind conditions[C],2014.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[孙振旭]的文章
[杨国伟]的文章
[郭迪龙]的文章
百度学术
百度学术中相似的文章
[孙振旭]的文章
[杨国伟]的文章
[郭迪龙]的文章
必应学术
必应学术中相似的文章
[孙振旭]的文章
[杨国伟]的文章
[郭迪龙]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。