DICP OpenIR
Subject Area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)
KeywordTaylor Flow Gas-liquid Carbon Dioxide Microreactor Aspect Ratio Hydrodynamics
Source PublicationCHEMICAL ENGINEERING SCIENCE
2013-05-24
DOI10.1016/j.ces.2013.03.046
Volume95Pages:246-256
Indexed BySCI
SubtypeArticle
DepartmentDNL09
Funding ProjectDNL0903
Contribution Rank1,1
WOS HeadingsScience & Technology ; Technology
WOS SubjectEngineering, Chemical
WOS Research AreaEngineering
WOS KeywordLIQUID 2-PHASE FLOW ; SQUARE CROSS-SECTION ; BUBBLE-TRAIN FLOW ; AIR-WATER FLOW ; TAYLOR FLOW ; MASS-TRANSFER ; PRESSURE-DROP ; VOID FRACTION ; CHANNEL DIAMETER ; INTERFACIAL AREA
AbstractSlug 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.
Language英语
WOS IDWOS:000318614100026
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/117617
Collection中国科学院大连化学物理研究所
Corresponding AuthorChen GW(陈光文)
Affiliation1.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
Recommended Citation
GB/T 7714
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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