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Computer Simulation of Three Particles Sedimentation in a Narrow Channel

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  • Rongqian Chen
  • Yi Liu
  • Deming Nie

Abstract

The settling of three particles in a narrow channel is simulated via the lattice Boltzmann direct-forcing/fictitious domain (LB-DF/FD) method for the Reynolds number ranging from 5 to 200. The effects of the wall and the Reynolds number are studied. It is interesting to find that at certain Reynolds numbers the left (right) particle is settling at 0.175 (0.825) of the channel width irrespective of its initial position or the channel width. Moreover, numerical results have shown that the lateral particles lead at small Reynolds numbers, while the central particle leads at large Reynolds numbers due to the combined effects of particle-particle and particle-wall interactions. The central particle will leave the lateral ones behind when the Reynolds number is large enough. Finally the effect of the Reynolds number on the trajectory of the lateral particles is presented.

Suggested Citation

  • Rongqian Chen & Yi Liu & Deming Nie, 2017. "Computer Simulation of Three Particles Sedimentation in a Narrow Channel," Mathematical Problems in Engineering, Hindawi, vol. 2017, pages 1-11, March.
    • Handle: RePEc:hin:jnlmpe:1259840
    DOI: 10.1155/2017/1259840
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