垂直管道内油-水两相环状流的流动特征
Investigation on the performance of oil-water two-phase core annular flow in vertical pipes
查看参考文献18篇
|
文摘
|
该文通过实验研究了垂直上升和垂直下降管道内油水两相混合液的流动特征。实验段管道的内径为25mm,垂直段长度为1500mm。为了得到油水两相环状流流型,分别在垂直管道的入口和出口处安装有收缩和扩张管道。实验中的油相为白油(97mPa?s,860kg/m~3),水为普通生活用水(1mPa?s,998kg/m~3),含油率范围为0–100%,混合速度为0.28m/s–4.65m/s。研究中,分别采用压力传感器、高速摄像机和快关阀对管道中两相流动的压降、流型和含油率等特征进行了测量和记录,并采用两流体理论模型对流动中的摩擦压降进行预测。研究结果显示:流动中形成的水包裹油的广义环状流型,可以很好的降低摩擦压降,并可以将摩擦压降分为壁面摩擦和界面摩擦两部分,采用两流体理论对压降梯度进行预测,误差小于20%;由于油水两相间的密度差和截面相分布特征,使两相之间存在速度滑移,可以看出垂直上升和下降管道内的油相的相速度值均高于水相,在含油率为60%–80%时其差值达到最大。 |
|
其他语种文摘
|
The performance of oil-water two-phase flow in downward and upward vertical pipes is investigated byexperiment. In the present study, a U-tube with the 25 mm inner diameter, 1 500 mm vertical length and two reductions from 50mm inner diameter to 25 mm inner diameter are designed to obtain the generalized annular flow regime. And, the white oil isused as the oil phase (97 mPa?s, 860 kg/m~3), the oil volume fraction is from 0 to 100% and the mixture velocity is in the range of0.28 m/s–4.65 m/s. In the research, pressure sensors, high speed camera and the quick closing valve system are used to measurethe pressure drop, flow regimes and in-situ oil volume fraction respectively. The frictional pressure drop in flow is predicted bytwo-fluid model. The results show that, the generalized annular flow can decrease the frictional pressure drop greatly, and thefrictional pressure drop should be divided into wall friction and interfacial friction which can be predicted by two-fluid model inthe accuracy of 20%. Also, the quantitative description of velocity-slip is given that the oil phase velocity in downward andupward vertical pipes is greater than water and the difference becomes greatest in the oil volume fraction of 60%-80%. |
|
来源
|
水动力学研究与进展. A辑
,2014,29(2):225-231 【核心库】
|
|
DOI
|
10.3969/j.issn1000-4874.2014.02.013
|
|
关键词
|
两相流动
;
环状流
;
速度滑移
;
界面摩擦
|
|
地址
|
1.
中国科学院力学研究所, 北京, 100190
2.
中国航空油料有限责任公司, 北京, 100088
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-4874 |
|
学科
|
力学 |
|
文献收藏号
|
CSCD:5104061
|
参考文献 共
18
共1页
|
|
1.
Benshakaria A. Experimentalstudy of the pipeline lubrication of heavy oiltransport.
Oil Gas Science Technology Rev. IFP,2004,59(5):523-533
|
被引
5
次
|
|
|
|
|
2.
刘海飞. 超稠油水在倾斜管路中两相流动的研究.
水动力学研究与进展, A辑,2012,27(6):742-748
|
被引
5
次
|
|
|
|
|
3.
Xu J Y. Experimental investigationon the holdup distribution of oil-water twophaseflow in horizontal parallel tubes.
Chemical Engineeringand Technology,2008,31(10):1536-1540
|
被引
1
次
|
|
|
|
|
4.
常英. 水平分支管路中油水两相流动研究.
水动力学研究与进展, A辑,2008,23(6):702-708
|
被引
3
次
|
|
|
|
|
5.
王树众. 油水混合物在水平管中的二相流动特性研究.
化学工程,2005,33(2):26-29
|
被引
1
次
|
|
|
|
|
6.
窦丹. 原油/水管流压降规律实验.
石油化工高等学校学报,2006,19(2):60-63
|
被引
1
次
|
|
|
|
|
7.
陈杰. 水平管内油-水两相流动压降规律的实验研究.
实验力学,2001,16(4):402-408
|
被引
3
次
|
|
|
|
|
8.
Ghosh S. Review of oilwater core annular flow.
Renewable and SustainableEnergy Reviews,2009,13(8):1957-1965
|
被引
7
次
|
|
|
|
|
9.
Oliemans R V A. Coreannular oil water flow: The turbulent lubricating filmmodel and measurements in a 5 cm pipe loop.
InternationalJournal of Multiphase Flow,1986,13(1):23-31
|
被引
1
次
|
|
|
|
|
10.
Joseph D D. Core annularflows: Annual reviews.
Journal of Fluid Mechanics,1997,29:1-30
|
被引
1
次
|
|
|
|
|
11.
Bai R. Lubricated pipeline:Stability of core-annular flow: Part 5 Experiments andcomparison with theory.
Journal of Fluid Mechanics,1992,240:97-132
|
被引
2
次
|
|
|
|
|
12.
Parda V J W. Modeling of verticalcore annular flows and application to heavy oil production.
Journal of Energy Resource Technology,ASME,2001,123(3):194-199
|
被引
1
次
|
|
|
|
|
13.
Rodriguez O M H. Experimentalstudy on interfacial waves in vertical core flow.
Journal of Petroleum Science and Engineering,2006,54(3/4):140-148
|
被引
3
次
|
|
|
|
|
14.
Jana A K. Flow regime identificationof two-phase liquid-liquid upflow through verticalpipe.
Chemical Engineering Sciences,2006,61(5):1500-1515
|
被引
10
次
|
|
|
|
|
15.
Jana A K. An analysis ofpressure drop and holdup for liquid-liquid upflow throughvertical pipes.
Chemical Engineering and Technology,2007,30(7):920-925
|
被引
2
次
|
|
|
|
|
16.
Hasson D. Annular flow of twoimmiscible liquids-I mechanisms.
The Canada Journalof Chemical Engineering,1970,48(5):514-520
|
被引
5
次
|
|
|
|
|
17.
Xu J Y. Experimental investigationon the slip between oil and water in horizontalpipes.
Experimental Thermal and Fluid Science,2008,33(1):178-183
|
被引
5
次
|
|
|
|
|
18.
Xu J Y. Investigations of phaseinversion and frictional pressure gradients in upwardand downward oil-water flow in vertical pipes.
InternationalJournal of Multiphase Flow,2010,36(11/12):930-939
|
被引
5
次
|
|
|
|
|
了解气象卫星更多信息，请访问