Time Irreversibility from Time Series for Analyzing Oil-in-Water Flow Transition

Du Meng, Chen Xiao-yan, Liu Hong-ying, He Qing, Bai Rui-xiang, Liu Weixin and Li Zewei

Mathematical Problems in Engineering, 2016, vol. 2016, 1-10

Abstract:

We first experimentally collect conductance fluctuation signals of oil-in-water two-phase flow in a vertical pipe. Then we detect the flow pattern asymmetry character from the collected signals with multidimensional time irreversibility and multiscale time irreversibility index. Moreover, we propose a novel criterion, that is, AMSI (average of multiscale time irreversibility), to quantitatively investigate the oil-in-water two-phase flow pattern dynamics. The results show that AMSI is sensitive to the flow pattern evolution that can be used to predict the flow pattern transition and bubble coalescence.

Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:2879524

DOI: 10.1155/2016/2879524

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