Study of drag reduction by gas injection for power-law fluid flow in horizontal stratified and slug flow regimes
Xu JY(许晶禹); Wu YX(吴应湘); Li H; Guo J(郭军); Chang Y(常英); Xu JY(许晶禹)
2009
发表期刊Chemical Engineering Journal
卷号147期号:2-3页码:235–244
ISSN1385-8947
摘要In this work, the drag reduction by gas injection for power-law fluid flow in stratified and slug flow regimes has been studied. Experimentswere conducted to measure the pressure gradient within air/CMC solutions in a horizontal Plexiglas pipe that had a diameter of 50mm and a length of 30 m. The drag reduction ratio in stratified flow regime was predicted using the two-fluid model. The results showed that the drag reduction should occur over the large range of the liquid holdup when the flow behaviour index remained at the low value. Furthermore, for turbulent gas-laminar liquid stratified flow, the drag reduction by gas injection for Newtonian fluid was more effective than that for shear-shinning fluid, when the dimensionless liquid height remained in the area of high value. The pressure gradient model for a gas/Newtonian liquid slug flow was extended to liquids possessing the Ostwald–de Waele power law model. The proposed model was validated against 340 experimental data point over a wide range of operating conditions, fluid characteristics and pipe diameters. The dimensionless pressure drop predicted was well inside the 20% deviation region for most of the experimental data. These results substantiated the general validity of the model presented for gas/non-Newtonian two-phase slug flows.
关键词Drag Reduction Power-law Fluid Gas-liquid Flow Horizontal Pipes Non-newtonian Liquid Pressure-drop Reducing Polymers Large-diameter 2-phase Flow Pipes Air Mixtures Tubes Model
学科领域多相流
DOI10.1016/j.cej.2008.07.006
收录类别SCI
语种英语
WOS记录号WOS:000264521700019
关键词[WOS]NON-NEWTONIAN LIQUID ; PRESSURE-DROP ; REDUCING POLYMERS ; LARGE-DIAMETER ; 2-PHASE FLOW ; PIPES ; AIR ; MIXTURES ; TUBES ; MODEL
WOS研究方向Engineering
WOS类目Engineering, Environmental ; Engineering, Chemical
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/26500
专题水动力学与海洋工程重点实验室(2009-2011)
通讯作者Xu JY(许晶禹)
推荐引用方式
GB/T 7714
Xu JY,Wu YX,Li H,et al. Study of drag reduction by gas injection for power-law fluid flow in horizontal stratified and slug flow regimes[J]. Chemical Engineering Journal,2009,147(2-3):235–244.
APA Xu JY,Wu YX,Li H,Guo J,Chang Y,&许晶禹.(2009).Study of drag reduction by gas injection for power-law fluid flow in horizontal stratified and slug flow regimes.Chemical Engineering Journal,147(2-3),235–244.
MLA Xu JY,et al."Study of drag reduction by gas injection for power-law fluid flow in horizontal stratified and slug flow regimes".Chemical Engineering Journal 147.2-3(2009):235–244.
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