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题名: Flow pattern and pressure drop of upward two-phase flow in vertical capillaries
作者: Liu, Dingsheng1, 2;  Wang, Shudong1, 2
通讯作者: 王树东
刊名: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
发表日期: 2008-01-02
DOI: 10.1021/ie070901h
卷: 47, 期:1, 页:243-255
收录类别: SCI
文章类型: Article
部门归属: 9
项目归属: 901
产权排名: 1;1
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: Gas-liquid two-phase flow patterns were investigated visually with a digital camera for upward air-water flow in capillaries with diameters of 1.47, 2.37, and 3.04 mm. Several distinctive flow patterns were observed and described. The flow pattern maps developed in this work were compared with the conventional flow-pattern transition criteria for larger-diameter tubes and the experimental data that have been published. The total pressure drop in capillaries was measured with a differential pressure transducer for Taylor flow, which existed broadly in multiphase monolith reactors and microchannel reactors. A new correlation was presented to calculate the total pressure gradient (TPG) of Taylor flow. In addition, the other three models, which were proposed previously by other researchers, were also used to predict the TPG. The four theoretical results all were in overall agreement with the experimental data. Finally, the effects of method used to calculate the void fraction on the TPG were checked. It was observed that the void fraction influenced the TPG remarkably, and the drift flux model was not suitable to evaluate the void fraction under the present experimental conditions.
关键词[WOS]: TAYLOR FLOW ;  VOID FRACTION ;  LIQUID ;  TUBES ;  MICROCHANNELS ;  DIAMETER ;  CHANNELS ;  REACTORS ;  REGIMES
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000251915600028
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100785
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Liu, Dingsheng,Wang, Shudong. Flow pattern and pressure drop of upward two-phase flow in vertical capillaries[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2008,47(1):243-255.
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