Published July 21, 1996 | Version v1
Journal article Metadata-only

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

Creators

  • 1. Kobe Univ. (Japan). Dept. of Mechanical Engineering
  • 2. Department of Electrical and Electronic Engineering, Musashi Institute of Technology, Setagaya, Tokyo 158 (Japan)
  • 3. Tokai Establishment, Japan Atomic Energy Research Institute, Tokai, Naka, Ibaraki 319-11 (Japan)

Description

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 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 pseudo-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. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Journal Volume
377
Journal Issue
1
Journal Page Range
p. 153-155.
ISSN
0168-9002
CODEN
NIMAER

Conference

Title
2. international topical meeting on neutron radiography system design and characterization.
Dates
12-18 Nov 1995.
Place
Tokyo (Japan).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
27068307
Subject category
S07: ISOTOPES AND RADIATION SOURCES;
Resource subtype / Literary indicator
Conference
Descriptors DEI
FLOW VISUALIZATION; GAS FLOW; IMAGE PROCESSING; NEUTRON RADIOGRAPHY; NONLINEAR PROBLEMS; REAL TIME SYSTEMS; SPATIAL DISTRIBUTION; TWO-DIMENSIONAL CALCULATIONS; TWO-PHASE FLOW; VOID FRACTION
Descriptors DEC
DISTRIBUTION; FLUID FLOW