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Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1

ISSN Print: 1065-3090
ISSN Online: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v3.i1.10
pages 1-11

VOID FRACTION MEASUREMENTS IN GAS-LIQUID FLOWS USING IMAGE PROCESSING

N. Neil Clarke
Mechanical Engineering Department, University of Saskatchewan, Saskatoon, SK, S7N 5A9, Canada
Kamiel S. Rezkallah
Microgravify Research Group, College of Engineering, University of Saskatchewan, Saskatoon, Mechanical Engineering Dept. University of Manitoba, Winnipeg, Canada

ABSTRACT

The results of a study of the suitability of image processing to determine the instantaneous volumetric void fraction in two-phase gas-liquid flow in a circular tube (9.525 mm i.d.) are presented here. The particle tracing software developed by the National Institutes of Health (NIH**) was used to analyze the visual images and to determine the volume portion of gas and liquid in a transparent section of a 9.525 mm i.d. tube. The void fraction was then calculated and compared with the experimental results from data collected on board the NASA KC-135 zero-gravity aircraft using a capacitance sensor.