Gas-liquid two-phase flow patterns in microchannels with reentrant cavities in sidewall

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	Gas-liquid two-phase flow patterns in microchannels with reentrant cavities in sidewall
	Chai, Lei 1,2; Xia, Guodong 1; Wang, Liang 2; Zhou, Mingzheng 1,3
刊名	EXPERIMENTAL THERMAL AND FLUID SCIENCE
	2014-02-01
卷号	53 页码:86-92
关键词	Two-phase Flow pattern Microchannel Reentrant cavity
英文摘要	Two-phase flow patterns in two horizontal microchannels with uniform reentrant cavities in sidewall were experimentally studied, using deionized water and air as working fluids. The hydraulic diameter of microchannels in the constant rectangular cross-section is 133.3 mu m. Two structures (fan-shaped and triangular) of reentrant cavity are arranged to be mounted in sidewall with 0.25 mm spacing to develop two new microchannels with variable cross-sections. The liquid and gas superficial velocities in the microchannels cover the 0.1-0.5 m/s and 0.1-10 m/s ranges, respectively. High-performance CCD digital imaging camera with a Nikon microscope is used to determine the flow patterns in the two new proposed microchannels. Two distinct flow patterns were observed: intermittent flow and separated flow. Evolution characteristic for different flow patterns along the flow direction are presented. Flow pattern maps using gas and liquid superficial velocities as coordinates and the correlations to describe flow pattern transition for the newly proposed microchannel test sections are obtained, respectively. (C) 2013 Elsevier Inc. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Engineering, Mechanical ; Physics, Fluids & Plasmas
研究领域[WOS]	Thermodynamics ; Engineering ; Physics
关键词[WOS]	SMALL RECTANGULAR CHANNELS ; PRESSURE-DROP ; VOID FRACTION ; PART I ; MICRO-CHANNELS ; DIAMETER ; SQUARE ; FUTURE
收录类别	SCI
语种	英语
WOS记录号	WOS:000331422700008
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/106009]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	1.Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ, Coll Environm & Energy Engn, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Engn Thermophys, Beijing, Peoples R China 3.State Nucl Power Technol R&D Ctr, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Chai, Lei,Xia, Guodong,Wang, Liang,et al. Gas-liquid two-phase flow patterns in microchannels with reentrant cavities in sidewall[J]. EXPERIMENTAL THERMAL AND FLUID SCIENCE,2014,53:86-92.
APA	Chai, Lei,Xia, Guodong,Wang, Liang,&Zhou, Mingzheng.(2014).Gas-liquid two-phase flow patterns in microchannels with reentrant cavities in sidewall.EXPERIMENTAL THERMAL AND FLUID SCIENCE,53,86-92.
MLA	Chai, Lei,et al."Gas-liquid two-phase flow patterns in microchannels with reentrant cavities in sidewall".EXPERIMENTAL THERMAL AND FLUID SCIENCE 53(2014):86-92.