Direct Numerical Simulation of Passive Scalar in Decaying Compressible Turbulence

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	Direct Numerical Simulation of Passive Scalar in Decaying Compressible Turbulence
	Li XL(李新亮); Fu DX(傅德薰); Ma YW(马延文)
刊名	Science in China Series G-Physics Astronomy
	2004
通讯作者邮箱	lixl@lnm.imech.ac.cn
卷号	47 期号:1 页码:52-63
ISSN号	1672-1799
通讯作者	Li, XL (reprint author), Chinese Acad Sci, Inst Mech, State Key Nonlinear Mech, Beijing 100080, Peoples R China.
中文摘要	The passive scalars in the decaying compressible turbulence with the initial Reynolds number (defined by Taylor scale and RMS velocity) Re=72, the initial turbulent Mach numbers (defined by RMS velocity and mean sound speed) Mt=0.2-0.9, and the Schmidt numbers of passive scalar Sc=2-10 are numerically simulated by using a 7th order upwind difference scheme and 8th order group velocity control scheme. The computed results are validated with different numerical methods and different mesh sizes. The Batchelor scaling with k(-1) range is found in scalar spectra. The passive scalar spectra decay faster with the increasing turbulent Mach number. The extended self-similarity (ESS) is found in the passive scalar of compressible turbulence.
学科主题	力学
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000188945900007
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/16345]
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	Li XL,Fu DX,Ma YW. Direct Numerical Simulation of Passive Scalar in Decaying Compressible Turbulence[J]. Science in China Series G-Physics Astronomy,2004,47(1):52-63.
APA	李新亮,傅德薰,&马延文.(2004).Direct Numerical Simulation of Passive Scalar in Decaying Compressible Turbulence.Science in China Series G-Physics Astronomy,47(1),52-63.
MLA	李新亮,et al."Direct Numerical Simulation of Passive Scalar in Decaying Compressible Turbulence".Science in China Series G-Physics Astronomy 47.1(2004):52-63.