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Media type:
E-Article
Title:
Direct numerical simulations of three-dimensional bubbly flows
Contributor:
Bunner, Bernard;
Tryggvason, Grétar
imprint:
AIP Publishing, 1999
Published in:Physics of Fluids
Language:
English
DOI:
10.1063/1.870105
ISSN:
1070-6631;
1089-7666
Origination:
Footnote:
Description:
<jats:p>Direct numerical simulations of the motion of many buoyant bubbles are presented. The Navier–Stokes equation is solved by a front tracking/finite difference method that allows a fully deformable interface. The evolution of 91 nearly spherical bubbles at a void fraction of 6% is followed as the bubbles rise over 100 bubble diameters. While the individual bubble velocities fluctuate, the average motion reaches a statistical steady state with a rise Reynolds number of about 25.</jats:p>