EULERIAN-LAGRANGIAN SIMULATION OF A BUBBLING FLUIDIZED BED REACTOR: ASSESSMENT OF DRAG FORCE CORRELATIONS

Abstract

An Eulerian-Lagrangian approach is developed within the OpenFOAM framework o investigate the effects of three well-known inter-phase drag force correlations n the fluidization behavior in a bubbling fluidized bed reactor. The results how a strong dependency on the restitution coefficient and the friction oefficient and no occurrence of bubbling and slugging for the ideal-collision ase. The mean pressure drops predicted by the three models agree quite well ith each other.

Keywords

Dates

  • Submission Date2012-08-01
  • Revision Date2012-09-04
  • Acceptance Date2012-09-14

DOI Reference

10.2298/TSCI1205442K

References

  1. Esmaili, E., Mahinpey, N., Adjustment of Drag Coefficient Correlations in Three Dimensional CFD Simulation of Gas-Solid Bubbling Fluidized Bed, Advances in Engineering Software, 42 (2011), 6, pp. 375-386
  2. Loha, C., et al., Assessment of Drag Models in Simulating Bubbling Fluidized Bed Hydrodynamics, Chemical Engineering Science, 75 (2012), pp. 400-407
  3. Song, X. Q., et al., Research on Reducing Erosion by Adding Ribs on the Wall in Particulate Two- Phase Flows, Wear, 193 (1996), 1, pp. 1-7
  4. Lin, J. Z., et al., The Motion of Fibers in an Evolving Mixing Layer, International Journal of Multiphase Flow, 29 (2003), 8, pp. 1355-1372
  5. Lin, J. Z., et al., Effects of the Aspect Ratio on the Sedimentation of a Fiber in Newtonian Fluids, Journal of Aerosol Science, 34 (2003), 7, pp. 909-921
  6. Lin, J. Z., et al., Numerical Research on the Orientation Distribution of Fibers Immersed in Laminar and Turbulent Pipe Flows, Journal of Aerosol Science, 35 (2004), 1, pp. 63-82
  7. Zhou, Z. Y., et al., Discrete Particle Simulation of Gas-Solid Flow in a Blast Furnace, Computers and Chemical Engineering, 32 (2008), pp. 8, 1760-1772
  8. Hoomans, B. P. B., et al., Discrete Particle Simulation of Bubble and Slug Formation in a Two- Dimensional Gas Fluidised Bed: A Hard-Sphere Approach. Chemical Engineering Science, 51 (1996), 1, pp. 99-118
  9. Su, J., et al., Discrete Element Simulation of Particle Flow in Arbitrarily Complex Geometries, Chemical Engineering Science, 66 (2011), 23, pp. 6069-6088
  10. Nie, D. M., Lin, J. Z., A Fluctuating Lattice-Boltzmann Model for Direct Numerical Simulation of Particle Brownian Motion, Particuology, 7 (2009), 6, pp. 501-506
  11. Nie, D. M., Lin, J. Z., A LB-DF/FD Method for Particle Suspensions, Communications in Computational in Physics, 7 (2010), 3, pp. 544-563
  12. Nie, D. M., Lin, J. Z., Dynamics of Two Elliptical Particles Sedimentation in a Vertical Channel: Chaotic State, International Journal of Computational Fluid Dynamics, 25 (2011), 7, pp. 401-406
  13. Benyahia, S., et al., Extension of Hill-Koch-Ladd Drag Correlation over all Ranges of Reynolds Number and Solids Volume Fraction, Powder Technology, 162 (2006), 2, pp. 166-174
  14. Gidaspow, D., Multiphase Flow and Fluidization, Academic Press, San Diego, Cal., USA, 1994
  15. Ergun, S., Fluid Flow through Packed Columns, Chemical Engineering Progress, 48 (1952), 2, pp. 89- 94
  16. Wen, C. Y., Yu, Y. H., Mechanics of Fluidization, Chemical Engineering Progress Symposium Series, 62 (1966), pp. 100-111
  17. Di Felice, R., The Voidage Function for Fluid-Particle Interaction Systems, Int. J. Multiphase Flow, 20 (1994), 1, pp. 153-159
Volume 16, Issue 5, Pages1442 -1145