Numerical Study on the Flow Past Three Cylinders in Equilateral-Triangular Arrangement at Re=3 x 10(6)

doi:10.3390/app122211835

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Numerical Study on the Flow Past Three Cylinders in Equilateral-Triangular Arrangement at Re=3 x 10(6)
	Zhang, Mohan 1,2; Yin, Bo 1,2; Guo, Dilong 1,2; Ji, Zhanling 1,2; Yang, Guowei 1,2
刊名	APPLIED SCIENCES-BASEL
	2022-11-01
卷号	12 期号:22 页码:21
关键词	flow interference vortex interaction vortex dynamics improved delayed-detached eddy simulation (IDDES)
DOI	10.3390/app122211835
通讯作者	Yin, Bo(yinbo@imech.ac.cn)
英文摘要	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.
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]
WOS关键词	CIRCULAR-CYLINDERS ; CROSS-FLOW ; SIMULATION ; INTERFERENCE
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
语种	英语
WOS记录号	WOS:000887037300001
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences (Class A) ; Strategic Priority Research Program of the Chinese Academy of Sciences (Class B)
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/91068]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Yin, Bo
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Mohan,Yin, Bo,Guo, Dilong,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.
APA	Zhang, Mohan,Yin, Bo,Guo, Dilong,Ji, Zhanling,&Yang, Guowei.(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.
MLA	Zhang, Mohan,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.