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

文献类型：期刊论文

作者Liao F(廖飞); Yang XL(杨晓雷)
刊名THEORETICAL AND APPLIED MECHANICS LETTERS
出版日期2021-05
卷号11期号:4页码:100279
关键词Immersed boundary method Turbulent channel flow Wavenumber-frequency spectra Near-wall turbulence
ISSN号2095-0349
DOI10.1016/j.taml.2021.100279
英文摘要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.
分类号二类
WOS研究方向Mechanics
语种英语
资助机构National Natural Science Foundation of China (NSFC) Basic Science Center Program [11988102] ; Strategic Priority Research Program, Chinese Academy of Sciences (CAS) [XDB22040104]
其他责任者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.
源URL[http://dspace.imech.ac.cn/handle/311007/93698]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
2.Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China
3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, 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.

入库方式： OAI收割

来源：力学研究所

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