Short-and resonant-range interactions between scales in turbulence and their applications

CORC > 力学研究所 > 中国科学院力学研究所 > 力学所知识产出(1956-2008)

	Short-and resonant-range interactions between scales in turbulence and their applications
	Gao Z(高智)
刊名	Applied Mathematics and Mechanics (English Edition)
	2004
通讯作者邮箱	Gaozhi@imech.acn.cn
卷号	25 期号:8 页码:917-928
关键词	Turbulence Interacting Scale Eddy Viscosity Short-Range Viscous Stress Resonant-Range Viscous Stress Multiscale Equation
ISSN号	0253-4827
通讯作者	Gao, Z (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
中文摘要	Interactions between different scales in turbulence were studied starting from the incompressible Navier-Stokes equations. The integral and differential formulae of the short-range viscous stresses, which express the short-range interactions between contiguous scales in turbulence, were given. A concept of the resonant-range interactions between extreme contiguous scales was introduced and the differential formula of the resonant-range viscous stresses was obtained. The short- and resonant-range viscous stresses were applied to deduce the large-eddy simulation (LES) equations as well as the multiscale equations, which are approximately closed and do not contain any empirical constants or relations. The properties and advantages of using the multiscale equations to compute turbulent flows were discussed. The short-range character of the interactions between the scales in turbulence means that the multiscale simulation is a very valuable technique for the calculation of turbulent flows. A few numerical examples were also given.
类目[WOS]	Mathematics, Applied ; Mechanics
研究领域[WOS]	Mathematics ; Mechanics
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000223690400011
公开日期	2009-08-03 ; 2010-06-13
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/33773]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Gao Z. Short-and resonant-range interactions between scales in turbulence and their applications[J]. Applied Mathematics and Mechanics (English Edition),2004,25(8):917-928.
APA	高智.(2004).Short-and resonant-range interactions between scales in turbulence and their applications.Applied Mathematics and Mechanics (English Edition),25(8),917-928.
MLA	高智."Short-and resonant-range interactions between scales in turbulence and their applications".Applied Mathematics and Mechanics (English Edition) 25.8(2004):917-928.