IMECH-IR  > 水动力学与海洋工程重点实验室(2009-2011)
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)
Source PublicationChemical Engineering Journal
2009
Volume147Issue:2-3Pages:235–244
ISSN1385-8947
AbstractIn 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.
KeywordDrag 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
Subject Area多相流
DOI10.1016/j.cej.2008.07.006
Indexed BySCI
Language英语
WOS IDWOS:000264521700019
WOS KeywordNON-NEWTONIAN LIQUID ; PRESSURE-DROP ; REDUCING POLYMERS ; LARGE-DIAMETER ; 2-PHASE FLOW ; PIPES ; AIR ; MIXTURES ; TUBES ; MODEL
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/26500
Collection水动力学与海洋工程重点实验室(2009-2011)
Corresponding AuthorXu JY(许晶禹)
Recommended Citation
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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