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

Abstract

The previously developed lattice Boltzmann - direct forcing/fictitious domain method s improved by introducing a multiple-relaxation-time model, and a detailed nvestigation of sedimentation of a capsule-shaped particle settling in a channel is arried out. The effects of blockage ratio on the sedimentation pattern at low Reynolds umbers are studied. It concludes that for a narrow channel, besides vertical nd horizontal pattern, there exists another sedimentation pattern named inclined attern. Through a large amount of simulations, two critical lines are obtained, hich divide the three patterns based on the critical values of density ratio.

Keywords

Dates

  • Submission Date2012-08-01
  • Revision Date2012-09-01
  • Acceptance Date2012-09-12

DOI Reference

10.2298/TSCI1205419N

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