Use of the Degenerated Reynolds Equation in Solving the Microchannel Flow Problem

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	Use of the Degenerated Reynolds Equation in Solving the Microchannel Flow Problem
	Shen Q(沈青)
刊名	Physics of Fluids
	2005
通讯作者邮箱	cshen@imech.ac.cn
卷号	17 期号:4 页码:046101-6
ISSN号	1070-6631
通讯作者	Shen, C (reprint author), Chinese Acad Sci, Inst Mech, Lab High Temp Gas Dynam, 15 Zhongguancun Rd, Beijing 100080, Peoples R China.
中文摘要	In this paper, the author proposes that the generalized Reynolds equation employed in the gas film lubrication problems, where the flow rates of the Poiseuille flow are calculated from the Boltzmann equation, can be degenerated for solving the microchannel. flow problem in the transitional regime. Using this approach, the calculated results of pressure distribution in long microchannels show excellent agreement with the experimental data and the result of the information preservation (IP) method. The results in short microchannels show excellent agreement with the direct simulation Monte Carlo method and the IP method. The lattice Boltzmann method solution of the microchannel flow is examined by comparison with the degenerated Reynolds equation calculations and the disagreement in the pressure distribution confirms that the lattice Boltzmann method is unsuitable for the solution of the microelectromechanical systems (MEMS) flows in transitional regime. For microchannel flows, the degenerated Reynolds equation can serve as a criterion having the merits of kinetic theory for testing various methods intending to solve rarefied gas flow problems in MEMS devices in the transitional flow regime.
学科主题	力学
类目[WOS]	Mechanics ; Physics, Fluids & Plasmas
研究领域[WOS]	Mechanics ; Physics
关键词[WOS]	RAREFIED-GAS FLOWS ; STATISTICAL SIMULATION ; FLUID-FLOWS ; FILM
收录类别	SCI
语种	英语
WOS记录号	WOS:000228828000020
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/311007/15461]
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	Shen Q. Use of the Degenerated Reynolds Equation in Solving the Microchannel Flow Problem[J]. Physics of Fluids,2005,17(4):046101-6.
APA	沈青.(2005).Use of the Degenerated Reynolds Equation in Solving the Microchannel Flow Problem.Physics of Fluids,17(4),046101-6.
MLA	沈青."Use of the Degenerated Reynolds Equation in Solving the Microchannel Flow Problem".Physics of Fluids 17.4(2005):046101-6.