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Scale-adaptive subgrid-scale modelling for large-eddy simulation of turbulent flows
Yu ZP(于长平); Xiao ZL; Li XL(李新亮); Xiao, ZL (reprint author), Peking Univ, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China.; Xiao, ZL (reprint author), Peking Univ, Coll Engn, HEDPS, Beijing 100871, Peoples R China.; Xiao, ZL (reprint author), Peking Univ, Coll Engn, Ctr Appl Phys & Technol, Beijing 100871, Peoples R China.; Xiao, ZL (reprint author), Peking Univ, Beijing Innovat Ctr Engn Sci & Adv Technol, Beijing 100871, Peoples R China.
2017-03-01
发表期刊PHYSICS OF FLUIDS
卷号29期号:3
ISSN1070-6631
摘要The proportionality between the subgrid-scale (SGS) drain rate of kinetic energy and the viscous dissipation rate of the resolved motions is studied a priori by filtering a given fully resolved field and evaluating a generic form of the hypothesized energy spectrum. The ratio of the SGS drain to the resolved dissipation on which a balance condition for the SGS dissipation across an arbitrary grid scale is founded is shown to be independent of the turbulence Reynolds number and can be described by a function in terms of the averaged mesh Reynolds number. Such a balance condition can serve as a physical constraint in the SGS modeling to account for the scale effects of the model coefficient(s). Scale-adaptive dynamic Smagorinsky-Lilly model and mixed nonlinear model are formulated for large-eddy simulation of transitional and/or turbulent flows in such away that the constraint is satisfied. The newly proposed scale-adaptive dynamic SGS models are validated in simulations of homogeneous isotropic turbulence and turbulent channel flow and prove to be superior over traditional dynamic SGS models. Published by AIP Publishing.
DOI10.1063/1.4977089
收录类别SCI ; EI
语种英语
WOS记录号WOS:000397874300030
关键词[WOS]ATMOSPHERIC BOUNDARY-LAYER ; CHANNEL FLOW ; KOLMOGOROV CONSTANT ; REYNOLDS-NUMBER ; UNIVERSALITY ; STATISTICS ; WALL ; JET
WOS研究方向Mechanics ; Physics
WOS类目Mechanics ; Physics, Fluids & Plasmas
项目资助者National Natural Science Foundation of China(11472278 ; National Key Research and Development Program of China(2016YFA0401200) ; 11372007 ; 91441103 ; 11372330)
课题组名称LHD可压缩湍流
论文分区一类/力学重要期刊
力学所作者排名1
引用统计
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/60586
专题高温气体动力学国家重点实验室
通讯作者Xiao, ZL (reprint author), Peking Univ, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China.; Xiao, ZL (reprint author), Peking Univ, Coll Engn, HEDPS, Beijing 100871, Peoples R China.; Xiao, ZL (reprint author), Peking Univ, Coll Engn, Ctr Appl Phys & Technol, Beijing 100871, Peoples R China.; Xiao, ZL (reprint author), Peking Univ, Beijing Innovat Ctr Engn Sci & Adv Technol, Beijing 100871, Peoples R China.
推荐引用方式
GB/T 7714
Yu ZP,Xiao ZL,Li XL,et al. Scale-adaptive subgrid-scale modelling for large-eddy simulation of turbulent flows[J]. PHYSICS OF FLUIDS,2017,29(3).
APA 于长平.,Xiao ZL.,李新亮.,Xiao, ZL .,Xiao, ZL .,...&Xiao, ZL .(2017).Scale-adaptive subgrid-scale modelling for large-eddy simulation of turbulent flows.PHYSICS OF FLUIDS,29(3).
MLA 于长平,et al."Scale-adaptive subgrid-scale modelling for large-eddy simulation of turbulent flows".PHYSICS OF FLUIDS 29.3(2017).
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