Mechanism Responsible for the Complete Suppression of Karman Vortex in Flows Past a Wavy Square-Section Cylinder
文献类型：期刊论文
| 作者 | Lin LM(林黎明) ; Ling GC(凌国灿); Wu YX(吴应湘); Lin LM
|
| 刊名 | Chinese Physics Letters
 |
| 出版日期 | 2010 |
| 卷号 | 27期号:3页码:34702 |
| 通讯作者邮箱 | llm@lnm.imech.ac.cn |
| ISSN号 | 0256-307X |
| 通讯作者 | Lin LM |
| 中文摘要 | The 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. |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | DRAG |
| 收录类别 | SCI |
| 资助信息 | National High-Tech Research and Development Program of China [2006AA09Z350]; Chinese Academy of Sciences [KJCX2-YW-L02] |
| 原文出处 | http://iopscience.iop.org/0256-307X/27/3/034702 |
| 语种 | 英语 |
| WOS记录号 | WOS:000275376200053 |
| 公开日期 | 2011-03-01 ; 2011-03-30 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/43529]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Lin LM |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：力学研究所
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