Measuring Flow Pattern Asymmetry of Oil-Water Two Phase Flows Using Multi-channel Rotating Electric Field Conductance Signals
In: Zeitschrift für Naturforschung A, Jg. 74 (2018-10-24), S. 25-41
Online
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Zugriff:
The 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.
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Measuring Flow Pattern Asymmetry of Oil-Water Two Phase Flows Using Multi-channel Rotating Electric Field Conductance Signals
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Autor/in / Beteiligte Person: | Jin, Ningde ; Yingyu, Ren ; Han, Yunfeng ; Yuansheng, He |
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Zeitschrift: | Zeitschrift für Naturforschung A, Jg. 74 (2018-10-24), S. 25-41 |
Veröffentlichung: | Walter de Gruyter GmbH, 2018 |
Medientyp: | unknown |
ISSN: | 1865-7109 (print) ; 0932-0784 (print) |
DOI: | 10.1515/zna-2018-0312 |
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