Multiphase Science and Technology A Quarterly

ISSN for PRINT: 0276-1459

For Online Access

Best Paper Award Selection - Editorial Board Site

2005, Volume17

Issue 1-2

190 pages

DOI: 10.1615/MultScienTechn.v17.i1-2

Issue price - $280.00

G. Matsui
Dept. of Mechanical Engineering and Biomimetics, Kinki University, Wakayama 649-6493, Japan

H. Monji
Institute of Engineering Mechanics and Systems, University of Tsukuba, Tsukuba 305-8573, Japan

This study deals with a simultaneous visualization technique and image analysis of particle/bubble behavior on its position of the center of gravity, shape, and attitude of motion, in addition to flow field around it. In the multiphase flow field, the interaction between a particle/bubble and surrounding fluid or two-way effect is very important to understand complex phenomena of dispersed flow. Therefore, simultaneous visualization of both particle/bubble motion and surrounding flow has been requested. In addition, determination of the 3D-position of the center of gravity of the particle/bubble and the distance between its center of gravity and the plane of velocity field obtained has been required. In the study, such a visualization technique and image analysis namely Moving Object-Flow Image Analyzer (MOFIA) was developed to determine the distance. Furthermore, image analysis for obtaining particle/bubble behavior on its shape and attitude was settled in order to obtain basic data for discussing the essential interaction. The results of measurement made using MOFIA for both a single particle and two particles in stagnant water show that adequate data are obtainable for discussing the interaction based on the composite of two images of particle/bubble and flow field.

DOI: 10.1615/MultScienTechn.v17.i1-2.30 Download article, 43-55 pages

Article price - $45.00

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