A Four-Sector Conductance Method for Measuring and Characterizing Low-Velocity Oil-Water Two-Phase Flows
A Four-Sector Conductance Method for Measuring and Characterizing Low-Velocity Oil-Water Two-Phase Flows
复制标题
测量和表征低速油水两相流的四扇区电导法
DOI：
10.1109/tim.2016.2540862
复制
发表时间：
2016-07-01
影响因子：
5.6
通讯作者：
Chen, Guanrong
中科院分区：
文献类型：
--
作者：
Gao, Zhongke;Yang, Yuxuan;Chen, Guanrong
油水两相流持水率的测量和流动特性的表征是一个当代的和具有挑战性的问题，在工业上具有重要意义。为了解决这个问题，我们开发了一种新的方法来设计新型四扇区分布式电导传感器。具体来说，我们首先使用有限元法（FEM）调查的电场的灵敏度分布，然后计算其响应的测量电极。基于有限元分析结果，我们提取了两个优化指标来描述和寻找四扇区分布式电导传感器的最佳几何形状。在垂直上升管中进行了油水两相流实验，验证了所设计的传感器在持水率测量中的应用。此外，我们使用多元伪维格纳分布（MPWD）的方法来分析来自四扇区分布式传感器的多元信号。我们的分析和实验结果表明，四部门的分布式电导传感器可以测量持水率和MPWD允许揭示不同的油水流动模式的局部流动行为。
Measuring water holdup and characterizing the flow behavior of an oil-water two-phase flow is a contemporary and challenging problem of significant importance in industry. To address this problem, we develop a new method to design a new four-sector distributed conductance sensor. Specifically, we first use the finite-element method (FEM) to investigate the sensitivity distribution of the electric field and then calculate its response on the measurement electrodes. Based on the FEM analysis results, we extract two optimizing indexes to describe and find the optimum geometry for the four-sector distributed conductance sensor. We carry out oil-water two-phase flow experiments in a vertical upward pipe to validate the designed sensor implemented in the measurement of water holdup. In addition, we use the multivariate pseudo Wigner distribution (MPWD) method to analyze the multivariate signals from the four-sector distributed sensor. Our analytical and experimental results indicate that the four-sector distributed conductance sensor enables measuring water holdup and the MPWD allows uncovering local flow behavior revealing different oil-water flow patterns.