scholarly journals Measurement of Solid-Gas Two Phase Flow Void Fraction in Horizontal Pipe by Capacitance CT

2003 ◽  
Vol 23 (Supplement2) ◽  
pp. 215-216
Author(s):  
Shinya TSUJINO ◽  
Masahiro TAKEI ◽  
Mitsuaki OCHI
Keyword(s):  
Void Fraction ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Flow Void

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

2016 ◽  
Vol 40 (3) ◽  
pp. 746-761 ◽  
Author(s):  
Weiling Liu ◽  
Chao Tan ◽  
Feng Dong
Keyword(s):  
Void Fraction ◽  
Transient Flow ◽  
Two Phase Flow ◽  
Wire Mesh ◽  
Local Characteristic ◽  
Phase Flow ◽  
Flow Conditions ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Local Flow

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 16×16 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.

Two-phase flow void fraction estimation based on bubble image segmentation using Randomized Hough Transform with Neural Network (RHTN)

2020 ◽  
Vol 118 ◽  
pp. 103133 ◽  
Author(s):  
Pedro L.S. Serra ◽  
Paulo H.F. Masotti ◽  
Marcelo S. Rocha ◽  
Delvonei A. de Andrade ◽  
Walmir M. Torres ◽  
...  
Keyword(s):  
Neural Network ◽  
Image Segmentation ◽  
Void Fraction ◽  
Hough Transform ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Randomized Hough Transform ◽  
Flow Void

High Bandwidth Two-Phase Flow Void Fraction Fiber Optic Sensor

1986 ◽  
Author(s):  
Ph. Graindorge ◽  
G. Le Boudec ◽  
D. Meyet ◽  
H. J. Arditty
Keyword(s):  
Void Fraction ◽  
Fiber Optic ◽  
Two Phase Flow ◽  
Fiber Optic Sensor ◽  
Phase Flow ◽  
Two Phase ◽  
Optic Sensor ◽  
Flow Void ◽  
High Bandwidth
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