Large Eddy Simulation of Complex Turbulent Flows: Physical Aspects and Research Trends

IMECH-IR > 力学所知识产出(1956-2008)

	Large Eddy Simulation of Complex Turbulent Flows: Physical Aspects and Research Trends
	Li JC(李家春); Li, JC (reprint author), Chinese Acad Sci, Inst Mech, DES, Beijing 100080, Peoples R China.
发表期刊	Acta Mechanica Sinica
	2001
卷号	17 期号:4 页码:289-301
ISSN	0567-7718
摘要	In the current paper, we have primarily addressed one powerful simulation tool developed during the last decades-Large Eddy Simulation (LES), which is most suitable for unsteady three-dimensional complex turbulent flows in industry and natural environment. The main point in LES is that the large-scale motion is resolved while the small-scale motion is modeled or, in geophysical terminology, parameterized. With a view to devising a subgrid-scale(SGS) model of high quality, we have highlighted analyzing physical aspects in scale interaction and-energy transfer such as dissipation, backscatter, local and non-local interaction, anisotropy and resolution requirement. They are the factors responsible for where the advantages and disadvantages in existing SGS models come from. A case study on LES of turbulence in vegetative canopy is presented to illustrate that LES model is more based on physical arguments. Then, varieties of challenging complex turbulent flows in both industry and geophysical fields in the near future-are presented. In conclusion; we may say with confidence that new century shall see the flourish in the research of turbulence with the aid of LES combined with other approaches.
学科领域	力学
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000172518000001
关键词[WOS]	PLANETARY BOUNDARY-LAYER ; ISOTROPIC TURBULENCE ; SCALE INTERACTIONS ; FOREST ; CONVECTION ; MODELS
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/16692
专题	力学所知识产出(1956-2008)
通讯作者	Li, JC (reprint author), Chinese Acad Sci, Inst Mech, DES, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Li JC,Li, JC . Large Eddy Simulation of Complex Turbulent Flows: Physical Aspects and Research Trends[J]. Acta Mechanica Sinica,2001,17,4,:289-301.
APA	李家春,&Li, JC .(2001).Large Eddy Simulation of Complex Turbulent Flows: Physical Aspects and Research Trends.Acta Mechanica Sinica,17(4),289-301.
MLA	李家春,et al."Large Eddy Simulation of Complex Turbulent Flows: Physical Aspects and Research Trends".Acta Mechanica Sinica 17.4(2001):289-301.

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