Local characteristic of horizontal air-water two-phase flow by wire-mesh sensor

被引：4
作者：
Liu, Weiling [1 ]
Tan, Chao [1 ]
Dong, Feng [1 ]
机构：
[1] Tianjin Univ, Sch Elect Engn & Automat, Tianjin Key Lab Proc Measurement & Control, Tianjin 300072, Peoples R China
来源：
TRANSACTIONS OF THE INSTITUTE OF MEASUREMENT AND CONTROL | 2018年 / 40卷 / 03期
基金：
中国国家自然科学基金;
关键词：
3D transient flow fluctuation energy evolution; characteristic scale distribution; gas-liquid two-phase flow; local spectrum energy analysis; local void fraction distribution; wire-mesh sensor; ELECTRICAL CAPACITANCE TOMOGRAPHY; GAS-LIQUID FLOWS; PHASE DISTRIBUTION; VERTICAL PIPE; VOID FRACTION; BUBBLY FLOWS; SLUG FLOW; VISUALIZATION; DISTRIBUTIONS; PROBE;
D O I：
10.1177/0142331216665689
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Two-phase flow widely exists in many industries. Understanding local characteristics of two-phase flow under different flow conditions in piping systems is important to design and optimize the industrial process for higher productivity and lower cost. Air-water two-phase flow experiments were conducted with a 16x16 conductivity wire-mesh sensor (WMS) in a horizontal pipe of a multiphase flow facility. The cross-sectional void fraction time series was analysed by the probability density function (PDF), which described the void fraction fluctuation at different flow conditions. The changes and causes of PDFs during a flow regime transition were analysed. The local structure and flow behaviour were characterized by the local flow spectrum energy analysis and the local void fraction distribution (horizontal, vertical and radial direction) analysis. Finally, three-dimensional transient flow fluctuation energy evolution and characteristic scale distribution based on wavelet analysis of air-water two-phase flow were presented, which revealed the structural features of each phase in two-phase flow.
引用
收藏
页码：746 / 761
页数：16
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