IMECH-IR  > 高温气体动力学国家重点实验室
Investigation of aerodynamic performance of high-speed train by detached eddy simulation
Zheng HW(郑洪伟); Yang GW(杨国伟); Zheng HW(郑洪伟)
Source PublicationProceedings of the 1st International Workshop on High-Speed and Intercity Railways, Vol.2
2012
Pages31-39
Conference Name1st International Workshop on High-Speed and Intercity Railways, IWHIR 2011
Conference DateJULY 19-22, 2011
Conference PlaceShenzhen, Hong Kong, China
AbstractThe detached eddy simulation (DES) is employed to study the flows around the high speed train at speed of 500km/h. Its object is to evaluate the aerodynamic performance. As we know, for high speed trains at speeds bigger than 250 km/h, most (about 75-80%) of the total resistance is caused by aerodynamic drag. Hence, it is important to accurately predict the aerodynamic drag for the designer of new shape of train. To achieve this goal, one of the challenge problems is to capture the massively separations in the wake region which are rarely explored in the literature. To further simplified the problem, the study is only applied to the simplified modelling train which does not include items like bogies, pantographs etc. The results show that DES can capture the separation as well as the small scales of eddies in the wake region.
KeywordHigh Speed Train Detached Eddy Simulation Aerodynamic Performance
DepartmentLMFS流固耦合与数值计算(LHO)
Funding OrganizationThe Hong Kong Polytechnic University,Hong Kong,China
ISBN978-3-642-27962-1
URL查看原文
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46796
Collection高温气体动力学国家重点实验室
Corresponding AuthorZheng HW(郑洪伟)
Recommended Citation
GB/T 7714
Zheng HW,Yang GW,Zheng HW. Investigation of aerodynamic performance of high-speed train by detached eddy simulation[C]Proceedings of the 1st International Workshop on High-Speed and Intercity Railways, Vol.2,2012:31-39.
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