Study of drag reduction by gas injection for power-law fluid flow in horizontal stratified and slug flow regimes
文献类型：期刊论文
| 作者 | 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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| 刊名 | Chemical Engineering Journal
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| 出版日期 | 2009 |
| 卷号 | 147期号:2-3页码:235–244 |
| 通讯作者邮箱 | xujingyu@imech.ac.cn |
| 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 |
| ISSN号 | 1385-8947 |
| 通讯作者 | 许晶禹 |
| 合作状况 | 其它 |
| 中文摘要 | 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. |
| 学科主题 | 多相流 |
| 类目[WOS] | Engineering, Environmental ; Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | NON-NEWTONIAN LIQUID ; PRESSURE-DROP ; REDUCING POLYMERS ; LARGE-DIAMETER ; 2-PHASE FLOW ; PIPES ; AIR ; MIXTURES ; TUBES ; MODEL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264521700019 |
| 公开日期 | 2009-09-27 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/26500]  |
| 专题 | 力学研究所_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. |
入库方式： OAI收割
来源：力学研究所
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