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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.
Source PublicationPHYSICS OF FLUIDS
2017-03-01
Volume29Issue:3
ISSN1070-6631
AbstractThe 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
Indexed BySCI ; EI
Language英语
WOS IDWOS:000397874300030
WOS KeywordATMOSPHERIC BOUNDARY-LAYER ; CHANNEL FLOW ; KOLMOGOROV CONSTANT ; REYNOLDS-NUMBER ; UNIVERSALITY ; STATISTICS ; WALL ; JET
WOS Research AreaMechanics ; Physics
WOS SubjectMechanics ; Physics, Fluids & Plasmas
Funding OrganizationNational Natural Science Foundation of China(11472278 ; National Key Research and Development Program of China(2016YFA0401200) ; 11372007 ; 91441103 ; 11372330)
DepartmentLHD可压缩湍流
Classification一类/力学重要期刊
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60586
Collection高温气体动力学国家重点实验室
Corresponding AuthorXiao, 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.
Recommended Citation
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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