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TECHNICAL PAPERS

Numerical Study of the Three-Dimensional Structure of a Bubble Plume

[+] Author and Article Information
Y. Murai

Department of Mechanical Engineering, Fukui University, Bunkyo 3-9-1, Fukui 910-8507, Japane-mail: murai@fv.mech.fukui-u.ac.jp

Y. Matsumoto

Department of Mechanical Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8654, Japan

J. Fluids Eng 122(4), 754-760 (Jun 20, 2000) (7 pages) doi:10.1115/1.1313245 History: Received April 22, 1999; Revised June 20, 2000
Copyright © 2000 by ASME
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References

Figures

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Restriction of numerical diffusion by CIP scheme
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Starting structures of bubble plumes (top: R=0.2 mm, bottom: R=0.5 mm)
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Three-dimensional behavior of bubble plume (prediction and experiment)
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Instantaneous structure of center of gravity of the bubble plume (simulation and experiment): measurement uncertainty is estimated 0.01 m due to accuracy of image processing
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Rising velocity profile of two phases in the bubble plume (open circle: bubble, closed circle: particle)
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Liquid velocity wave form (thick=outside, thin=inside the bubble plume)
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Force component ratio of bubbles in the bubble plume (INERTIA=inertia+added inertia, PRESSURE=pressure gradient force, DRAG=drag, LIFT=lift, VISCOSITY=viscous stress from liquid flow)
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Frequency response characteristics of a spherical bubble (γ=density ratio of dispersion against continuous phase, η=viscosity factor)

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