DICP OpenIR
Flow pattern and break-up of liquid film in single-channel falling film microreactors
Zhang, Haocui1,2; Yue, Jun1; Chen, Guangwe1; Yuan, Quan1; Chen GW(陈光文)
KeywordMicrochannel Microreactor Microfluidics Falling Film Flow Pattern Minimum Wetting Flow Rate
Source PublicationCHEMICAL ENGINEERING JOURNAL
2010-09-15
DOI10.1016/j.cej.2010.07.045
Volume163Issue:1-2Pages:126-132
Indexed BySCI
SubtypeArticle
Department903
Funding Project903
Contribution Rank1;1
WOS HeadingsScience & Technology ; Technology
WOS SubjectEngineering, Environmental ; Engineering, Chemical
WOS Research AreaEngineering
WOS KeywordCONTACT-ANGLE HYSTERESIS ; VERTICAL SURFACE ; WETTABILITY ; EVAPORATORS ; REACTOR
AbstractThis paper concerns an experimental investigation into the flow pattern transition and break-up mechanism of liquid film in single-channel falling film microreactors. Three major flow patterns were observed to be 'corner rivulet flow', 'falling film flow with dry patches', and 'complete falling film flow'. The critical flow rate associated with the transition between each flow pattern was determined. Hysteresis was found, as the critical flow rate was higher when the flow pattern shifted from 'falling film flow with dry patches' to 'complete falling film flow' than it was when the flow pattern shifted in the opposite direction. There existed a minimum wetting flow rate (MWF) in order to the complete falling film flow pattern to be present. MWF was observed to increase with the width or depth of microchannel and could not be well predicted by traditional falling film correlations. Based on the obtained data, an empirical correlation has been proposed for the prediction of MWF in falling film microreactors, where the influence of fluid physical properties and channel dimension is revealed. (C) 2010 Elsevier B.V. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000282391200017
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/103249
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.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Haocui,Yue, Jun,Chen, Guangwe,et al. Flow pattern and break-up of liquid film in single-channel falling film microreactors[J]. CHEMICAL ENGINEERING JOURNAL,2010,163(1-2):126-132.
APA Zhang, Haocui,Yue, Jun,Chen, Guangwe,Yuan, Quan,&陈光文.(2010).Flow pattern and break-up of liquid film in single-channel falling film microreactors.CHEMICAL ENGINEERING JOURNAL,163(1-2),126-132.
MLA Zhang, Haocui,et al."Flow pattern and break-up of liquid film in single-channel falling film microreactors".CHEMICAL ENGINEERING JOURNAL 163.1-2(2010):126-132.
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