Instability Of Plane Poiseuille Flow In A Fluid-Porous System

doi:10.1063/1.3000643

IMECH-IR > 力学所知识产出(1956-2008)

	Instability Of Plane Poiseuille Flow In A Fluid-Porous System
	Liu R(刘荣); Liu QS(刘秋生); Zhao SC(赵思诚); Liu, R (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100080, Peoples R China.
发表期刊	Physics of Fluids
	2008
ISSN	1070-6631
摘要	The instability of Poiseuille flow in a fluid-porous system is investigated. The system consists of a fluid layer overlying porous media and is subjected to a horizontal plane Poiseuille flow. We use Brinkman's model instead of Darcy's law to describe the porous layer. The eigenvalue problem is solved by means of a Chebyshev collocation method. We study the influence of the depth ratio (d) over cap and the Darcy number delta on the instability of the system. We compare systematically the instability of Brinkman's model with the results of Darcy's model. Our results show that no satisfactory agreement between Brinkman's model and Darcy's model is obtained for the instability of a fluid-porous system. We also examine the instability of Darcy's model. A particular comparison with early work is made. We find that a multivalued region may present in the (k, Re) plane, which was neglected in previous work. Here k is the dimensionless wavenumber and Re is the Reynolds number. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.3000643]
关键词	Stability Convection Layer Equation Pipe
DOI	10.1063/1.3000643
收录类别	SCI
语种	英语
WOS记录号	WOS:000260572800042
关键词[WOS]	STABILITY ; CONVECTION ; LAYER ; EQUATION ; PIPE
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
引用统计	被引频次：38[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/311007/25834
专题	力学所知识产出(1956-2008)
通讯作者	Liu, R (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Liu R,Liu QS,Zhao SC,et al. Instability Of Plane Poiseuille Flow In A Fluid-Porous System[J]. Physics of Fluids,2008.
APA	刘荣,刘秋生,赵思诚,&Liu, R .(2008).Instability Of Plane Poiseuille Flow In A Fluid-Porous System.Physics of Fluids.
MLA	刘荣,et al."Instability Of Plane Poiseuille Flow In A Fluid-Porous System".Physics of Fluids (2008).

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