Flow pattern and water holdup measurements of vertical upward oil–water two-phase flow in small diameter pipes

2012 ◽  
Vol 41 ◽  
pp. 91-105 ◽  
Author(s):  
Meng Du ◽  
Ning-De Jin ◽  
Zhong-Ke Gao ◽  
Zhen-Ya Wang ◽  
Lu-Sheng Zhai
2018 ◽  
Vol 74 (1) ◽  
pp. 25-41 ◽  
Author(s):  
Yuansheng He ◽  
Yingyu Ren ◽  
Yunfeng Han ◽  
Ningde Jin

AbstractThe present study is a report on the asymmetry of dispersed oil phase in vertical upward oil-water two phase flow. The multi-channel signals of the rotating electric field conductance sensor with eight electrodes are collected in a 20-mm inner diameter pipe, and typical images of low pattern are captured using a high speed camera. With the multi-channel rotating electric field conductance signals collected at pipe cross section, multi-scale time asymmetry (MSA) and an algorithm of multi-scale first-order difference scatter plot are employed to uncover the fluid dynamics of oil-water two phase flow. The results indicate that MSA can characterise the non-linear behaviours of oil-water two phase flow. Besides, the MSA analysis also beneficial for understanding the underlying inhomogeneous distribution of the flow pattern in different directions at pipe cross section.


2004 ◽  
Vol 28 (2-3) ◽  
pp. 145-152 ◽  
Author(s):  
Chi-Chung Wang ◽  
Ing Youn Chen ◽  
Yung-Wei Yang ◽  
Robert Hu

2017 ◽  
Vol 92 ◽  
pp. 39-49 ◽  
Author(s):  
Lu-Sheng Zhai ◽  
Panagiota Angeli ◽  
Ning-De Jin ◽  
Da-Shi Zhou ◽  
Lei Zhu

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