On the capability of the curvilinear immersed boundary method in predicting near-wall turbulence of turbulent channel flows

doi:10.1016/j.taml.2021.100279

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	On the capability of the curvilinear immersed boundary method in predicting near-wall turbulence of turbulent channel flows
	Liao F(廖飞); Yang XL(杨晓雷)
发表期刊	THEORETICAL AND APPLIED MECHANICS LETTERS
	2021-05
卷号	11 期号:4 页码:100279
ISSN	2095-0349
摘要	The immersed boundary method has been widely used for simulating flows over complex geometries. However, its accuracy in predicting the statistics of near-wall turbulence has not been fully tested. In this work, we evaluate the capability of the curvilinear immersed boundary (CURVIB) method in predicting near-wall velocity and pressure fluctuations in turbulent channel flows. Simulation results show that quantities including the time-averaged streamwise velocity, the rms (root-mean-square) of velocity fluctuations, the rms of vorticity fluctuations, the shear stresses, and the correlation coefficients of u' and v' computed from the CURVIB simulations are in good agreement with those from the body-fitted simulations. More importantly, it is found that the time-averaged pressure, the rms and wavenumber-frequency spectra of pressure fluctuations computed using the CURVIB method agree well with the body-fitted results. (C) 2021 The Author(s). Published by Elsevier Ltd on behalf of The Chinese Society of Theoretical and Applied Mechanics.
关键词	Immersed boundary method Turbulent channel flow Wavenumber-frequency spectra Near-wall turbulence
DOI	10.1016/j.taml.2021.100279
收录类别	CSCD
语种	英语
WOS研究方向	Mechanics
项目资助者	National Natural Science Foundation of China (NSFC) Basic Science Center Program [11988102] ; Strategic Priority Research Program, Chinese Academy of Sciences (CAS) [XDB22040104]
论文分区	二类
力学所作者排名	1
RpAuthor	Yang, XL (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. ; Yang, XL (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
引用统计	被引频次：2[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/311007/93698
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 2.Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liao F,Yang XL. On the capability of the curvilinear immersed boundary method in predicting near-wall turbulence of turbulent channel flows[J]. THEORETICAL AND APPLIED MECHANICS LETTERS,2021,11,4,:100279.
APA	廖飞,&杨晓雷.(2021).On the capability of the curvilinear immersed boundary method in predicting near-wall turbulence of turbulent channel flows.THEORETICAL AND APPLIED MECHANICS LETTERS,11(4),100279.
MLA	廖飞,et al."On the capability of the curvilinear immersed boundary method in predicting near-wall turbulence of turbulent channel flows".THEORETICAL AND APPLIED MECHANICS LETTERS 11.4(2021):100279.

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