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NUMERICAL INVESTIGATION OF A CAPSULE-SHAPED PARTICLE SETTLING IN A VERTICAL CHANNEL

ABSTRACT
The previously developed lattice Boltzmann - direct forcing/fictitious domain method is improved by introducing a multiple-relaxation-time model, and a detailed investigation of sedimentation of a capsule-shaped particle settling in a channel is carried out. The effects of blockage ratio on the sedimentation pattern at low Reynolds numbers are studied. It concludes that for a narrow channel, besides vertical and horizontal pattern, there exists another sedimentation pattern named inclined pattern. Through a large amount of simulations, two critical lines are obtained, which divide the three patterns based on the critical values of density ratio.
KEYWORDS
PAPER SUBMITTED: 2012-08-01
PAPER REVISED: 2012-09-01
PAPER ACCEPTED: 2012-09-12
DOI REFERENCE: https://doi.org/10.2298/TSCI1205419N
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE 5, PAGES [1419 - 1423]
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