Dns Of Compressible Turbulent Boundary Layer Around A Sharp Cone

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	Dns Of Compressible Turbulent Boundary Layer Around A Sharp Cone
	Li XL(李新亮); Fu DX(傅德薰); Ma YW(马延文)
刊名	Science In China Series G-Physics Mechanics & Astronomy
	2008
通讯作者邮箱	lixl@lnm.imech.ac.cn
页码	699-714
关键词	Direct Numerical Simulation
ISSN号	1672-1799
通讯作者	Li, XL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
中文摘要	Direct numerical simulation of the turbulent boundary layer over a sharp cone with 20 degrees cone angle (or 10 degrees half-cone angle) is performed by using the mixed seventh-order up-wind biased finite difference scheme and sixth-order central difference scheme. The free stream Mach number is 0.7 and free stream unit Reynolds number is 250000/inch. The characteristics of transition and turbulence of the sharp cone boundary layer are compared with those of the flat plate boundary layer. Statistics of fully developed turbulent flow agree well with the experimental and theoretical data for the turbulent flat-plate boundary layer flow. The near wall streak-like structure is shown and the average space between streaks (normalized by the local wall unit) keeps approximately invariable at different streamwise locations. The turbulent energy equation in the cylindrical coordinate is given and turbulent energy budget is studied. The computed results show that the effect of circumferential curvature on turbulence characteristics is not obvious.
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	DIRECT NUMERICAL-SIMULATION ; SCHEME ; FLOW
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000256031100012
公开日期	2009-08-03
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/26034]
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. Dns Of Compressible Turbulent Boundary Layer Around A Sharp Cone[J]. Science In China Series G-Physics Mechanics & Astronomy,2008:699-714.
APA	李新亮,傅德薰,&马延文.(2008).Dns Of Compressible Turbulent Boundary Layer Around A Sharp Cone.Science In China Series G-Physics Mechanics & Astronomy,699-714.
MLA	李新亮,et al."Dns Of Compressible Turbulent Boundary Layer Around A Sharp Cone".Science In China Series G-Physics Mechanics & Astronomy (2008):699-714.