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Experimental study on visualization of the flow field in microtube

文献类型：期刊论文

作者Liu, ZG; Zhao, YH
刊名SCIENCE IN CHINA SERIES E-ENGINEERING & MATERIALS SCIENCE
出版日期2005-10-01
卷号48期号:5页码:521-529
关键词visual experiment microtube microscale flow friction factor turbulent transition
英文摘要An experimental study was conducted to visualize the flow field and confirm the transitional Reynolds number from laminar to turbulent flow, as distilled water flows through quartz glass microtubes with inner diameter 315 and 520 gm. With gentian violet as colorant, the flow field pictures in the microtube, and therefore, is shot by a CCD camera with a microscope at different Reynolds numbers. Pressure drop data were also used to characterize the friction factor for those microtubes in the Reynolds number range of 200-2300. The experimental results clearly showed that the flow in the microtube was the laminar state and the friction factors agreed well with the Poiseuille equations when the Reynolds number was low. As the Reynolds number was larger than 1200 and 1500 for the microtube with inner diameter 315 and 520 gm, respectively, the friction factor departed from the classical laminar solution due to the earlier transition from laminar to turbulent flow. The flow turned into full turbulent when the Reynolds number reached 1500-1800.
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
研究领域[WOS]Engineering ; Materials Science
关键词[WOS]HEAT-TRANSFER ; MICROCHANNELS ; WATER ; LIQUID
收录类别SCI
语种英语
WOS记录号WOS:000233365700005
公开日期2015-12-22
源URL[http://ir.etp.ac.cn/handle/311046/106237]  
专题工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位Chinese Acad Sci, Inst Engn Thermophys, Beijing 100080, Peoples R China
推荐引用方式
GB/T 7714		 Liu, ZG,Zhao, YH. Experimental study on visualization of the flow field in microtube[J]. SCIENCE IN CHINA SERIES E-ENGINEERING & MATERIALS SCIENCE,2005,48(5):521-529.
APA Liu, ZG,&Zhao, YH.(2005).Experimental study on visualization of the flow field in microtube.SCIENCE IN CHINA SERIES E-ENGINEERING & MATERIALS SCIENCE,48(5),521-529.
MLA Liu, ZG,et al."Experimental study on visualization of the flow field in microtube".SCIENCE IN CHINA SERIES E-ENGINEERING & MATERIALS SCIENCE 48.5(2005):521-529.

入库方式： OAI收割

来源：工程热物理研究所

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