DICP OpenIR
学科主题物理化学
Characteristics of slug flow with inertial effects in a rectangular microchannel
Yao Chaoqun1,2; Zhao Yuchao1; Ye Chunbo1,2; Dang Minhui1,2; Dong Zhengya1,2; Chen Guangwen1; Chen GW(陈光文)
关键词Taylor Flow Gas-liquid Carbon Dioxide Microreactor Aspect Ratio Hydrodynamics
刊名CHEMICAL ENGINEERING SCIENCE
2013-05-24
DOI10.1016/j.ces.2013.03.046
95页:246-256
收录类别SCI
文章类型Article
部门归属DNL09
项目归属DNL0903
产权排名1,1
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Chemical
研究领域[WOS]Engineering
关键词[WOS]LIQUID 2-PHASE FLOW ; SQUARE CROSS-SECTION ; BUBBLE-TRAIN FLOW ; AIR-WATER FLOW ; TAYLOR FLOW ; MASS-TRANSFER ; PRESSURE-DROP ; VOID FRACTION ; CHANNEL DIAMETER ; INTERFACIAL AREA
英文摘要Slug flow behavior and characteristics have been studied in a rectangular microchannel with Y-junction. Two simple bubble shape models are proposed to calculate the film thickness, gas hold-up and the specific surface area. The results show a significant effect of inertia on the bubble generation process. The liquid film thickness was greatly thickened by the inertial effect. The main forces on the rupture of the gas bubbles present a shifting from pressure (squeezing regime) to shearing stress and dynamical pressure of the liquid (shearing regime). The transition was found to mainly depend on the liquid velocity. A strong leakage flow of the liquid film around the gas bubbles was suggested as the liquid slug lengths decreased instead when liquid velocity increased. This leakage flow is also the reason of the over-prediction of the bubble velocity based on the stagnant film hypothesis. (c) 2013 Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000318614100026
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/117617
专题中国科学院大连化学物理研究所
通讯作者Chen GW(陈光文)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Yao Chaoqun,Zhao Yuchao,Ye Chunbo,et al. Characteristics of slug flow with inertial effects in a rectangular microchannel[J]. CHEMICAL ENGINEERING SCIENCE,2013,95:246-256.
APA Yao Chaoqun.,Zhao Yuchao.,Ye Chunbo.,Dang Minhui.,Dong Zhengya.,...&陈光文.(2013).Characteristics of slug flow with inertial effects in a rectangular microchannel.CHEMICAL ENGINEERING SCIENCE,95,246-256.
MLA Yao Chaoqun,et al."Characteristics of slug flow with inertial effects in a rectangular microchannel".CHEMICAL ENGINEERING SCIENCE 95(2013):246-256.
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