IMECH-IR  > 非线性力学国家重点实验室
Mechanism Responsible for the Complete Suppression of Karman Vortex in Flows Past a Wavy Square-Section Cylinder
Lin LM(林黎明); Ling GC(凌国灿); Wu YX(吴应湘); Lin LM
Source PublicationChinese Physics Letters
2010
Volume27Issue:3Pages:34702
ISSN0256-307X
AbstractThe Karman vortex shedding is totally suppressed in flows past a wavy square-section cylinder at a Reynolds number of 100 and the wave steepness of 0.025. Such a phenomenon is illuminated by the numerical simulations. In the present study, the mechanism responsible for it is mainly attributed to the vertical vorticity. The geometric disturbance on the rear surface leads to the appearance of spanwise flow near the base. The specific vertical vorticity is generated on the rear surface and convecting into the near wake. The wake flow is recirculated with the appearance of the pair of recirculating cells. The interaction between the upper and lower shear layers is weakened by such cells, so that the vortex rolls could not be formed and the near wake flow becomes stable.
DOI10.1088/0256-307X/27/3/034702
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Indexed BySCI
Language英语
WOS IDWOS:000275376200053
WOS KeywordDRAG
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Funding OrganizationNational High-Tech Research and Development Program of China [2006AA09Z350] ; Chinese Academy of Sciences [KJCX2-YW-L02]
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/43529
Collection非线性力学国家重点实验室
Corresponding AuthorLin LM
Recommended Citation
GB/T 7714
Lin LM,Ling GC,Wu YX,et al. Mechanism Responsible for the Complete Suppression of Karman Vortex in Flows Past a Wavy Square-Section Cylinder[J]. Chinese Physics Letters,2010,27(3):34702.
APA 林黎明,凌国灿,吴应湘,&Lin LM.(2010).Mechanism Responsible for the Complete Suppression of Karman Vortex in Flows Past a Wavy Square-Section Cylinder.Chinese Physics Letters,27(3),34702.
MLA 林黎明,et al."Mechanism Responsible for the Complete Suppression of Karman Vortex in Flows Past a Wavy Square-Section Cylinder".Chinese Physics Letters 27.3(2010):34702.
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