A modified wall-adapting local eddy-viscosity model for large-eddy simulation of compressible wall-bounded flow

doi:10.1063/5.0119413

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	A modified wall-adapting local eddy-viscosity model for large-eddy simulation of compressible wall-bounded flow
	Qi, Han 1,2; Li, Xinliang 1,2; Yu, Changping 2
刊名	PHYSICS OF FLUIDS
	2022-11-01
卷号	34 期号:11 页码:10
ISSN号	1070-6631
DOI	10.1063/5.0119413
通讯作者	Yu, Changping(cpyu@imech.ac.cn)
英文摘要	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.
资助项目	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]
WOS关键词	SUBGRID-SCALE MODEL ; DIRECT NUMERICAL-SIMULATION ; LAYER ; TURBULENCE
WOS研究方向	Mechanics ; Physics
语种	英语
WOS记录号	WOS:000880808000019
资助机构	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
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/91050]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Yu, Changping
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China 2.Chinese Acad Sci, LHD, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Qi, Han,Li, Xinliang,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.
APA	Qi, Han,Li, Xinliang,&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	Qi, Han,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.