| A modified wall-adapting local eddy-viscosity model for large-eddy simulation of compressible wall-bounded flow | |
Qi H(齐涵); Li XL(李新亮) ; Yu, Changping
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| Corresponding Author | Yu, Changping([email protected]) |
| Source Publication | PHYSICS OF FLUIDS
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| 2022-11-01 | |
| Volume | 34Issue:11Pages:10 |
| ISSN | 1070-6631 |
| Abstract | The wall-adapting local eddy-viscosity (WALE) model in large-eddy simulation can well predict wall-bounded flows but it is also well known for excessive dissipation. In this study, we apply the minimum-dissipation model to constrain the WALE model in compressible flows and obtain the coefficient of the WALE model. Through this process, the dissipation of WALE model can be lower while it still maintains strong stability. In the modified WALE model, the isotropic part of the subgrid-scale (SGS) stress is also reconstructed. In the filtered total energy equation, all of the extra SGS unclosed terms (besides SGS stress and SGS heat flux) are modeled instead of neglecting some SGS terms, such as the SGS viscous diffusion. The modified WALE model is tested in a compressible turbulent channel flow and a supersonic turbulent boundary layer over a compression corner. The new model can well predict the mean velocity, the mean temperature, the Reynolds stress, and the separation bubble. Published under an exclusive license by AIP Publishing. |
| DOI | 10.1063/5.0119413 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000880808000019 |
| WOS Keyword | SUBGRID-SCALE MODEL ; DIRECT NUMERICAL-SIMULATION ; LAYER ; TURBULENCE |
| WOS Research Area | Mechanics ; Physics |
| WOS Subject | Mechanics ; Physics, Fluids & Plasmas |
| Funding Project | National Key Research and Development Program of China[2020YFA0711800] ; National Key Research and Development Program of China[2019YFA0405302] ; NSFC[12072349] ; NSFC[91852203] ; NSFC[12202457] ; National Numerical Windtunnel Project, Science Challenge Project[TZ2016001] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDC01000000] |
| Funding Organization | National Key Research and Development Program of China ; NSFC ; National Numerical Windtunnel Project, Science Challenge Project ; Strategic Priority Research Program of Chinese Academy of Sciences |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Yu, Changping |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/91051 |
| Collection | 高温气体动力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Qi H,Li XL,Yu, Changping. A modified wall-adapting local eddy-viscosity model for large-eddy simulation of compressible wall-bounded flow[J]. PHYSICS OF FLUIDS,2022,34,11,:10.Rp_Au:Yu, Changping |
| APA | 齐涵,李新亮,&Yu, Changping.(2022).A modified wall-adapting local eddy-viscosity model for large-eddy simulation of compressible wall-bounded flow.PHYSICS OF FLUIDS,34(11),10. |
| MLA | 齐涵,et al."A modified wall-adapting local eddy-viscosity model for large-eddy simulation of compressible wall-bounded flow".PHYSICS OF FLUIDS 34.11(2022):10. |
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