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Numerical analysis of isothermal gaseous flows in microchannel
Cao, B; Chen, GW; Li, Y; Yuan, Q; Yuan Q(袁权)
刊名CHEMICAL ENGINEERING & TECHNOLOGY
2006
DOI10.1002/ceat.200407079
29期:1页:66-71
收录类别SCI
文章类型Article
部门归属9
项目归属903
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]GAS-FLOW ; HEAT-TRANSFER
英文摘要Two-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.
语种英语
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WOS记录号WOS:000234790500007
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/93675
专题中国科学院大连化学物理研究所
通讯作者Yuan Q(袁权)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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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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