| Numerical Study on the Flow Past Three Cylinders in Equilateral-Triangular Arrangement at Re=3 x 10(6) |
| Zhang MH(张莫晗); Yin B(银波) ; Guo DL(郭迪龙); Ji ZL(纪占玲); Yang GW(杨国伟)
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| 通讯作者 | Yin, Bo(yinbo@imech.ac.cn)
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| 发表期刊 | APPLIED SCIENCES-BASEL
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| 2022-11-01
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| 卷号 | 12期号:22页码:21 |
| 摘要 | One of the most common systems in engineering problems is the multi-column system in the form of an equilateral-triangular arrangement. This study used three-dimensional numerical simulations to investigate the flow around three cylinders in this arrangement at the super-critical Reynolds number Re = 3 x 10(6), concentrating on the influence on the spacing ratio (L/D) among cylinders. The instantaneous vortex structures, Strouhal numbers, fluid force coefficients, and pressure distributions are analyzed thoroughly. The present study demonstrated that fluid dynamics is sensitive to L/D, by which five different flow patterns are classified, namely single bluff body flow (L/D <= 1.1), deflected gap flow (1.2 <= L/D <= 1.4), anti-phase flow (1.5 <= L/D <= 2.3), in-phase flow (2.5 <= L/D <= 3.5), and co-shedding flow (L/D >= 3.5). Critical bounds are identified by significant transitions in the flow structure, discontinuous drop and jump of St, and force coefficients. |
| 关键词 | flow interference
vortex interaction
vortex dynamics
improved delayed-detached eddy simulation (IDDES)
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| DOI | 10.3390/app122211835
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| 收录类别 | SCI
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| 语种 | 英语
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| WOS记录号 | WOS:000887037300001
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| 关键词[WOS] | CIRCULAR-CYLINDERS
; CROSS-FLOW
; SIMULATION
; INTERFERENCE
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| WOS研究方向 | Chemistry
; Engineering
; Materials Science
; Physics
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| WOS类目 | Chemistry, Multidisciplinary
; Engineering, Multidisciplinary
; Materials Science, Multidisciplinary
; Physics, Applied
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| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences (Class A)[XDB22020000]
; Strategic Priority Research Program of the Chinese Academy of Sciences (Class B)[XDB22020000]
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| 项目资助者 | Strategic Priority Research Program of the Chinese Academy of Sciences (Class A)
; Strategic Priority Research Program of the Chinese Academy of Sciences (Class B)
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| 论文分区 | 二类
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| 力学所作者排名 | 1
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| RpAuthor | Yin, Bo
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/91069
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| 专题 | 流固耦合系统力学重点实验室
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推荐引用方式
GB/T 7714 |
Zhang MH,Yin B,Guo DL,et al. Numerical Study on the Flow Past Three Cylinders in Equilateral-Triangular Arrangement at Re=3 x 10(6)[J]. APPLIED SCIENCES-BASEL,2022,12,22,:21.
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| APA |
张莫晗,银波,郭迪龙,纪占玲,&杨国伟.(2022).Numerical Study on the Flow Past Three Cylinders in Equilateral-Triangular Arrangement at Re=3 x 10(6).APPLIED SCIENCES-BASEL,12(22),21.
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| MLA |
张莫晗,et al."Numerical Study on the Flow Past Three Cylinders in Equilateral-Triangular Arrangement at Re=3 x 10(6)".APPLIED SCIENCES-BASEL 12.22(2022):21.
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