Void fraction distribution measurement in two-phase flow by real-time neutron radiography and real-time image processing

A real-time two-dimensional void fraction distribution measurement of gas-liquid two-phase flow was carried out by real-time neutron radiography and real-time image processing. The JRR-3M real-time thermal neutron radiography system and a Musashi dynamic image of processing system were used. Image p...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 1996-07, Vol.377 (1), p.153-155
Main Authors: Takenaka, Nobuyuki, Asano, Hitoshi, Fujii, Terushige, Murata, Yutaka, Mochiki, Kohichi, Taguchi, Akira, Matsubayashi, Masahito, Tsuruno, Akira
Format: Article
Language:English
Subjects:
Image processing
Neutron radiography
Real-time
Two-phase flow
Void fraction
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Summary:A real-time two-dimensional void fraction distribution measurement of gas-liquid two-phase flow was carried out by real-time neutron radiography and real-time image processing. The JRR-3M real-time thermal neutron radiography system and a Musashi dynamic image of processing system were used. Image processing methods to calculate two-dimensional and cross-sectional void fraction distributions were proposed. The void fraction distribution was calculated by non-linear processing of the neutron radiography image and displayed by pseud-color in real-time. A simple gas-liquid two-phase flow induced by injecting gas through needles at the bottom of water pool in a rectangular vessel was tested.
ISSN:0168-9002
1872-9576
DOI:10.1016/0168-9002(96)00133-7