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Studies on two-phase co-current air/non-Newtonian shear-thinning fluid flows in inclined smooth pipes
Xu JY(许晶禹); Wu YX(吴应湘); Shi ZH(石在虹); Lao LY(劳力云); Li DH(李东晖); Wu, YX (reprint author), Chinese Acad Sci, Inst Mech, Div Engn Sci, Beijing 100080, Peoples R China.
Source PublicationInternational Journal of Multiphase Flow
2007
Volume33Issue:9Pages:948-969
ISSN0301-9322
AbstractIn this work. co-current flow characteristics of air/non-Newtonian liquid systems in inclined smooth pipes are studied experimentally and theoretically using transparent tubes of 20, 40 and 60 turn in diameter. Each tube includes two 10 m lone pipe branches connected by a U-bend that is capable of being inclined to any angle, from a completely horizontal to a fully vertical position. The flow rate of each phase is varied over a wide range. The studied flow phenomena are bubbly, plug flow, slug flow, churn flow and annular flow. These are observed and recorded by a high flow. stratified flow. -speed camera over a wide range of operating conditions. The effects of the liquid phase properties, the inclination angle and the pipe diameter on two-phase flow characteristics are systematically studied. The Heywood-Charles model for horizontal flow was modified to accommodate stratified flow in inclined pipes, taking into account the average void fraction and pressure drop of the mixture flow of a gas/non-Newtonian liquid. The pressure drop gradient model of Taitel and Barnea for a gas/Newtonian liquid slug flow was extended to include liquids possessing shear-thinning flow behaviour in inclined pipes. The comparison of the predicted values with the experimental data shows that the models presented here provide a reasonable estimate of the average void fraction and the corresponding pressure drop for the mixture flow of a gas/ non-Newtonian liquid. (C) 2007 Elsevier Ltd. All rights reserved.
KeywordTwo-phase Flow Shear-thinning Fluid Flow Pattern Void Fraction Pressure Drop Inclination Flow Co-current Flow Liquid-mixtures Pressure-drop Unified Model Horizontal Pipes Stratified Flow Drag Reduction Large-diameter Slug Dynamics Gas
DOI10.1016/j.ijmultiphaseflow.2007.03.008
Indexed BySCI
Language英语
WOS IDWOS:000250490300003
WOS KeywordCO-CURRENT FLOW ; LIQUID-MIXTURES ; PRESSURE-DROP ; UNIFIED MODEL ; HORIZONTAL PIPES ; STRATIFIED FLOW ; DRAG REDUCTION ; LARGE-DIAMETER ; SLUG DYNAMICS ; GAS
WOS Research AreaMechanics
WOS SubjectMechanics
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/33881
Collection力学所知识产出(1956-2008)
Corresponding AuthorWu, YX (reprint author), Chinese Acad Sci, Inst Mech, Div Engn Sci, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Xu JY,Wu YX,Shi ZH,et al. Studies on two-phase co-current air/non-Newtonian shear-thinning fluid flows in inclined smooth pipes[J]. International Journal of Multiphase Flow,2007,33(9):948-969.
APA 许晶禹,吴应湘,石在虹,劳力云,李东晖,&Wu, YX .(2007).Studies on two-phase co-current air/non-Newtonian shear-thinning fluid flows in inclined smooth pipes.International Journal of Multiphase Flow,33(9),948-969.
MLA 许晶禹,et al."Studies on two-phase co-current air/non-Newtonian shear-thinning fluid flows in inclined smooth pipes".International Journal of Multiphase Flow 33.9(2007):948-969.
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