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| 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)
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| Source Publication | Chemical Engineering Journal
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| 2009 | |
| Volume | 147Issue:2-3Pages:235–244 |
| ISSN | 1385-8947 |
| Abstract | 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. |
| Keyword | 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 |
| Subject Area | 多相流 |
| DOI | 10.1016/j.cej.2008.07.006 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000264521700019 |
| WOS Keyword | NON-NEWTONIAN LIQUID ; PRESSURE-DROP ; REDUCING POLYMERS ; LARGE-DIAMETER ; 2-PHASE FLOW ; PIPES ; AIR ; MIXTURES ; TUBES ; MODEL |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Environmental ; Engineering, Chemical |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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 Author | Xu 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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| final.pdf（1215KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-ND | View Download | |
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