| 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.
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| 发表期刊 | PHYSICS OF FLUIDS
 |
| 2017-03-01
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| 卷号 | 29期号:3 |
| ISSN | 1070-6631
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| 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. |
| DOI | 10.1063/1.4977089
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000397874300030
|
| 关键词[WOS] | ATMOSPHERIC BOUNDARY-LAYER
; CHANNEL FLOW
; KOLMOGOROV CONSTANT
; REYNOLDS-NUMBER
; UNIVERSALITY
; STATISTICS
; WALL
; JET
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| WOS研究方向 | Mechanics
; Physics
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| WOS类目 | Mechanics
; Physics, Fluids & Plasmas
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| 项目资助者 | National Natural Science Foundation of China(11472278
; National Key Research and Development Program of China(2016YFA0401200)
; 11372007
; 91441103
; 11372330)
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| 课题组名称 | LHD可压缩湍流
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| 论文分区 | 一类/力学重要期刊
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| 力学所作者排名 | 1
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/60586
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| 专题 | 高温气体动力学国家重点实验室
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| 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,.
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| 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).
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| 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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