| 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)
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| Source Publication | THEORETICAL AND APPLIED MECHANICS LETTERS
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| 2021-05 | |
| Volume | 11Issue:4Pages:100279 |
| ISSN | 2095-0349 |
| Abstract | 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. |
| Keyword | Immersed boundary method Turbulent channel flow Wavenumber-frequency spectra Near-wall turbulence |
| DOI | 10.1016/j.taml.2021.100279 |
| Indexed By | CSCD |
| Language | 英语 |
| WOS Research Area | Mechanics |
| Funding Organization | National Natural Science Foundation of China (NSFC) Basic Science Center Program [11988102] ; Strategic Priority Research Program, Chinese Academy of Sciences (CAS) [XDB22040104] |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | 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. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/93698 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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.Rp_Au: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. |
| 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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| TAML015.pdf（1628KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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