DICP OpenIR
Numerical analysis of isothermal gaseous flows in microchannel
Cao, B; Chen, GW; Li, Y; Yuan, Q; Yuan Q(袁权)
Source PublicationCHEMICAL ENGINEERING & TECHNOLOGY
2006
DOI10.1002/ceat.200407079
Volume29Issue:1Pages:66-71
Indexed BySCI
SubtypeArticle
Department9
Funding Project903
Contribution Rank1;1
WOS HeadingsScience & Technology ; Technology
WOS SubjectEngineering, Chemical
WOS Research AreaEngineering
WOS KeywordGAS-FLOW ; HEAT-TRANSFER
AbstractTwo-dimensional compressible momentum equations were solved by a perturbation analysis and the PISO algorithm to investigate the effects of compressibility and rarefaction on the local flow resistance of isothermal gas flow in circular microchannels. The computations were performed for a wide range of Reynolds numbers and inlet Mach numbers. The explicit expression of the normalized local Fanning friction factor along the microchannel was derived in the present paper. The results reveal that the local Fanning friction factor is a function of the inlet Mach number, the Reynolds number and the length-diameter ratio of the channel. For larger Reynolds and inlet Mach numbers, the friction coefficient in the microchannel is higher than the value in a macrotube, and the gas flow in the microchannel is dominated only by compressibility. For smaller Reynolds and inlet Mach numbers, the Fanning friction factor of gas flow in the microchannel is lower than that in a circular tube of conventional size due to slip flow at the wall and thus, rarefaction has a significant effect on the fluid flow characteristics in a microchannel.
Language英语
URL查看原文
WOS IDWOS:000234790500007
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/93675
Collection中国科学院大连化学物理研究所
Corresponding AuthorYuan Q(袁权)
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Cao, B,Chen, GW,Li, Y,et al. Numerical analysis of isothermal gaseous flows in microchannel[J]. CHEMICAL ENGINEERING & TECHNOLOGY,2006,29(1):66-71.
APA Cao, B,Chen, GW,Li, Y,Yuan, Q,&袁权.(2006).Numerical analysis of isothermal gaseous flows in microchannel.CHEMICAL ENGINEERING & TECHNOLOGY,29(1),66-71.
MLA Cao, B,et al."Numerical analysis of isothermal gaseous flows in microchannel".CHEMICAL ENGINEERING & TECHNOLOGY 29.1(2006):66-71.
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