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Numerical study of vapor bubble effect on flow and heat transfer in microchannel
Dong, Zhiqiang1; Xu, Jinliang2; Jiang, Fangming1; Liu, Pei1
2012-04-01
Source PublicationINTERNATIONAL JOURNAL OF THERMAL SCIENCES
Volume54Pages:22-32
Abstract

Flow boiling in a microchannel is characterized by nucleation and dynamic behavior of vapor bubbles in the channel. In the present study, the effect of vapor bubble on fluid flow and heat transfer in a microchannel is investigated via lattice Boltzmann (LB) modeling. With respect to boiling flow in a single microchannel, the bubble nucleation, growth, and departure are simulated by using an improved hybrid LB model. Relating bubble behavior with fluid flow and boiling heat transfer provides some insight into the relevant fundamental physics on flow boiling in the microchannel. It is found that the bubble growth before its departure from the wall induces an obvious resistance to the fluid flow. The processes of nucleation and motion of different bubbles interact, leading to an alternate, either enhanced or weakened, effect of bubble behavior on the flow boiling. (C) 2011 Elsevier Masson SAS. All rights reserved.

SubtypeArticle
KeywordMicrochannel Lattice Boltzman Method Flow Boiling
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.ijthermalsci.2011.11.019
WOS Subject ExtendedThermodynamics ; Engineering
WOS KeywordLATTICE BOLTZMANN SIMULATION ; PARALLEL MICROCHANNELS ; INSTABILITY ; GROWTH ; SINKS ; WATER
Indexed BySCI
Language英语
WOS SubjectThermodynamics ; Engineering, Mechanical
WOS IDWOS:000300761400003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10541
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, CAS Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.N China Elect Power Univ, Beijing Key Lab New & Renewable Energy, Beijing 102206, Peoples R China
Recommended Citation
GB/T 7714
Dong, Zhiqiang,Xu, Jinliang,Jiang, Fangming,et al. Numerical study of vapor bubble effect on flow and heat transfer in microchannel[J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES,2012,54:22-32.
APA Dong, Zhiqiang,Xu, Jinliang,Jiang, Fangming,&Liu, Pei.(2012).Numerical study of vapor bubble effect on flow and heat transfer in microchannel.INTERNATIONAL JOURNAL OF THERMAL SCIENCES,54,22-32.
MLA Dong, Zhiqiang,et al."Numerical study of vapor bubble effect on flow and heat transfer in microchannel".INTERNATIONAL JOURNAL OF THERMAL SCIENCES 54(2012):22-32.
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