Influence of domain size on direct numerical simulation of turbulent flow in a moderately curved concentric annular pipe

doi:10.1063/5.0003436

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	Influence of domain size on direct numerical simulation of turbulent flow in a moderately curved concentric annular pipe
	Bagheri E 1; Wang BC 1; Yang ZX(杨子轩)1,2
发表期刊	PHYSICS OF FLUIDS
	2020-06-01
卷号	32 期号:6 页码:21
ISSN	1070-6631
摘要	Direct numerical simulation (DNS) of turbulent flow in a concentric annular pipe was performed using a pseudo-spectral method computer code. In order to study the effects of computational domain size on the turbulence statistics, 12 test cases of different domain sizes are compared. The characteristics of the velocity field are examined at two different Reynolds numbers. It is observed that the predictive accuracy of the first- and second-order statistics is sensitive to the axial and azimuthal domain sizes. It is also found that the scales and dynamics of turbulence structures vary with the surface curvature of the concave and convex walls. The characteristic length scales of the turbulence structures are identified through a spectral analysis, and it is observed that a minimum computational domain is required in order to accurately capture the near-wall streaky and hairpin structures of a concentric annular pipe flow using DNS.
DOI	10.1063/5.0003436
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000541914000001
关键词[WOS]	CHANNEL FLOW
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
项目资助者	Natural Sciences and Engineering Research Council (NSERC) of Canada
论文分区	一类/力学重要期刊
力学所作者排名	2
RpAuthor	Wang, Bing-Chen
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/84773
专题	非线性力学国家重点实验室
作者单位	1.Univ Manitoba, Dept Mech Engn, Winnipeg, MB R3T 5V6, Canada; 2.Chinese Acad Sci, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Bagheri E,Wang BC,Yang ZX. Influence of domain size on direct numerical simulation of turbulent flow in a moderately curved concentric annular pipe[J]. PHYSICS OF FLUIDS,2020,32,6,:21.
APA	Bagheri E,Wang BC,&杨子轩.(2020).Influence of domain size on direct numerical simulation of turbulent flow in a moderately curved concentric annular pipe.PHYSICS OF FLUIDS,32(6),21.
MLA	Bagheri E,et al."Influence of domain size on direct numerical simulation of turbulent flow in a moderately curved concentric annular pipe".PHYSICS OF FLUIDS 32.6(2020):21.

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