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STUDY ON THE INTERACTIONS BETWEEN TWO LIGHT PARTICLES RISING IN A VERTICAL CHANNEL

ABSTRACT
In this study, a 2-D lattice Boltzmann method was used to numerically study the interaction between two light particles rising freely in a channel. The influence of the Reynolds number and the density difference between the particles as they rose was studied from the aspects of particle velocity, motion trajectory and motion pattern. The results show that a change of Reynolds number changed the relative position and distance between the particles, and a change in density changed the inertial force of the particles, which affected the interaction between them. Two movement patterns have been revealed: relatively static and a periodic movement pattern. The influence of differing density on the movement period of the particles was also studied.
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PAPER SUBMITTED: 2021-07-10
PAPER REVISED: 2021-07-20
PAPER ACCEPTED: 2021-07-21
PUBLISHED ONLINE: 2021-12-18
DOI REFERENCE: https://doi.org/10.2298/TSCI21S2367G
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Special issue 2, PAGES [367 - 372]
REFERENCES
  1. Mathai, V., et al., Bubbly and Buoyant Particle-Laden Turbulent Flows, Annual Review of Condensed Matter Physics, 11 (2020), Mar., pp. 529-559
  2. Mordant, N., Pinton, J. F., Velocity Measurement of A Settling Sphere, The European Physical Journal B, 18 (2000), 2, pp. 343-352
  3. Jenny, M., et al., Instabilities and Transition of a Sphere Falling or Ascending Freely in a Newtonian Fluid, Journal of Fluid Mechanics, 508 (2004), June, pp. 201-239
  4. Allen, H. S. L., The Motion of a Sphere in a Viscous Fluid, The London, Edinburgh, and Dublin Philo-sophical Magazine and Journal of Science, 50 (1900), 306, pp. 519-534
  5. Karamanev, D. G., et al., Dynamics of the Free Rise of a Light Solid Sphere in Liquid, AIChE Journal, 42 (1996), 6, pp. 1789-1792
  6. Fortes A. F., et al., Non-linear Mechanics of Fluidization of Beds of Spherical Particles, Journal of Fluid Mechanics, 177 (1987), Apr., pp. 467-483
  7. Lomholt, S., et al., Experimental Verification of the Force Coupling Method for Particulate Flows, Inter-national Journal of Multiphase Flow, 28 (2002), 2, pp. 225-246
  8. Feng, Z. G., Michaelides, E. E., The Immersed Boundary-Lattice Boltzmann Method for Solving Fluid-Particles Interaction Problems, Journal of Computational Physics, 195 (2004), 2, pp. 602-628
  9. Glowinski, R., et al., A Fictitious Domain Approach to the Direct Numerical Simulation of Incompressible Viscous Flow Past Moving Rigid Bodies: Application to Particulate Flow, Journal of Computational Phys-ics, 169 (2001), 2, pp. 363-426
  10. Calzavarini, E., et al., Quantifying Turbulence-Induced Segregation of Inertial Particles, Physical Review Letters, 101 (2008), 8, 084504
  11. Qian, Y. H., et al., Lattice BGK Models for Navier-Stokes Equation, Europhysics Letters, 17 (1992), 6, pp. 479-484
  12. Lallemand, P., Luo, L. S., Lattice Boltzmann Method for Moving Boundaries, Journal of Computational Physics, 184 (2003), 2, pp. 406-421
  13. Nguyen, N. Q., Ladd, A. J. C., Lubrication Corrections for Lattice-Boltzmann Simulations of Particle Suspensions, Physical Review. E, Statistical, Nonlinear, and Soft Matter Physic, 66 (2002), 4, ID 046708

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence