Direct Numerical Simulation Of Hypersonic Boundary-Layer Transition Over A Blunt Cone

doi:10.2514/1.37305

IMECH-IR > 力学所知识产出(1956-2008)

	Direct Numerical Simulation Of Hypersonic Boundary-Layer Transition Over A Blunt Cone
	Li XL(李新亮); Fu DX(傅德薰); Ma YW(马延文); Li, XL (reprint author), Chinese Acad Sci, Inst Mech, Lab Nonlinear Mech, Beijing 100080, Peoples R China.
发表期刊	AIAA Journal
	2008
页码	2899-2913
ISSN	0001-1452
摘要	Direct numerical simulation of transition How over a blunt cone with a freestream Mach number of 6, Reynolds number of 10,000 based on the nose radius, and a 1-deg angle of attack is performed by using a seventh-order weighted essentially nonoscillatory scheme for the convection terms of the Navier-Stokes equations, together with an eighth-order central finite difference scheme for the viscous terms. The wall blow-and-suction perturbations, including random perturbation and multifrequency perturbation, are used to trigger the transition. The maximum amplitude of the wall-normal velocity disturbance is set to 1% of the freestream velocity. The obtained transition locations on the cone surface agree well with each other far both cases. Transition onset is located at about 500 times the nose radius in the leeward section and 750 times the nose radius in the windward section. The frequency spectrum of velocity and pressure fluctuations at different streamwise locations are analyzed and compared with the linear stability theory. The second-mode disturbance wave is deemed to be the dominating disturbance because the growth rate of the second mode is much higher than the first mode. The reason why transition in the leeward section occurs earlier than that in the windward section is analyzed. It is not because of higher local growth rate of disturbance waves in the leeward section, but because the growth start location of the dominating second-mode wave in the leeward section is much earlier than that in the windward section.
关键词	Hyperbolic Conservation-laws
DOI	10.2514/1.37305
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000260817900024
关键词[WOS]	HYPERBOLIC CONSERVATION-LAWS ; FLAT-PLATE ; TURBULENT SPOTS ; WENO SCHEME ; RECEPTIVITY ; WAVES ; FLOW ; DISTURBANCES ; STABILITY
WOS研究方向	Engineering
WOS类目	Engineering, Aerospace
引用统计	被引频次：73[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/311007/25846
专题	力学所知识产出(1956-2008)
通讯作者	Li, XL (reprint author), Chinese Acad Sci, Inst Mech, Lab Nonlinear Mech, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Li XL,Fu DX,Ma YW,et al. Direct Numerical Simulation Of Hypersonic Boundary-Layer Transition Over A Blunt Cone[J]. AIAA Journal,2008:2899-2913.
APA	李新亮,傅德薰,马延文,&Li, XL .(2008).Direct Numerical Simulation Of Hypersonic Boundary-Layer Transition Over A Blunt Cone.AIAA Journal,2899-2913.
MLA	李新亮,et al."Direct Numerical Simulation Of Hypersonic Boundary-Layer Transition Over A Blunt Cone".AIAA Journal (2008):2899-2913.

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