Time-frequency analysis of vertical upward oil-water two phase flow

摘要：

We carried out vertical upward oil-water two phase flow experiment and measured fluctuation signals from mini-conductance probes and the vertical multielectrode array (VMEA). We first define three observed flow patterns in terms of mini-conductance probe. Then, based on the signals obtained from VMEA, we use Adaptive Optimal Kernel Time-Frequency Representation (AOK TFR) to investigate oil-water flow patterns from time-frequency perspective. Furthermore, we propose two characteristic parameters, i.e., total energy, and time-frequency entropy, to quantitatively characterize the dynamical characteristics of different flow patterns. The results indicate that AOK TFR is an effective tool for characterizing and distinguishing different oilwater flow patterns.

关键词： Oil-water two phase flow VMEA sensor Mini conductance probe time-frequency analysis

作者: Meng Du Ning-De Jin Zhong-Ke Gao Zhen-Ya Wang Ping Chen

作者单位: School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China

会议类型: 国际会议

会议名称: The 7th International Symposium on Measurement Techniques for Multiphase Flows(第七届国际多相流测试技术会议)

会议地点: 天津

会议语种:英文

页码: 107-114

在线出版日期: 2011-09-17（万方平台首次上网日期，不代表论文的发表时间）