NUMERICAL INVESTIGATION OF PARTICLES TURBULENT DISPERSION IN CHANNEL FLOW

Abstract

This paper investigates the performance of Reynolds-averaged Navier-Stokes odel on dispersion of particles in wall turbulence. A direct numerical simulation f wall-bounded channel flow with particles suspensions was set as a enchmark. The standard k-ω model coupled with two different eddy interaction odels was used in Reynolds-averaged Navier-Stokes model and compared to he direct numerical simulation. Detailed comparisons between direct numerical imulation and Reynolds-averaged Navier-Stokes model on particle distribution volving over time were carried out.

Dates

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

DOI Reference

10.2298/TSCI1205510L

References

  1. Eaton, J. K., Fessler, J. R., Preferential Concentration of Particles by Turbulence, Int. J. Multiphase Flow, 20 (1994), Suppl. 1, pp. 169-209
  2. Marchioli, C., Soldati, A., Mechanisms for Particle Transfer and Segregation in Turbulent Boundary Layer, J. Fluid Mech., 468 (2002), pp. 283-315
  3. Lin, J. Z., Shi, X., Yu, Z. S., The Motion of Fibers in an Evolving Mixing Layer, Int. J. Multiphase flow, 29 (2003), 8, pp. 1355-1372
  4. Yamamoto, Y., et al., Large-Eddy Simulation of Turbulent Gas Particle Flow in a Vertical Channel: Effect of Considering Inter-Particle Collisions, J. Fluid Mech., 422 (2001), pp. 303-334
  5. Yu, M. Z., et al., Large Eddy Simulation of a Planar Jet Flow with Nanoparticle Coagulation, Acta Mechanica Sinica, 22 (2006), 4, pp. 293-300
  6. Yu, M. Z., Lin, J. Z., Chan, T. L., Numerical Simulation for Nucleated Vehicle Exhaust Particulate Matters via the TEMOM/LES Method, Int. J. of Modern Physics C, 20 (2009), 3, pp. 399-421
  7. Lin, J. Z., Zhang, W. F., Yu, Z. S., Numerical Research on the Orientation Distribution of Fibers Immersed in Laminar and Turbulent Pipe Flows, J. of Aerosol Sci., 35 (2004), 1, pp. 63-82
  8. Zhang, S. L., Lin, J. Z., Zhang, W. F., Numerical Research on the Fiber Suspensions in a Turbulent T- -Shaped Branching Channel Flow, Chinese J. Chem. Eng., 15 (2007), 1, pp. 30-38
  9. Lin, J. Z., Zhang, S. L., Olson, J. A., Computing Orientation Distribution and Rheology of Turbulent Fiber Suspensions Flowing through a Contraction, Eng. Computations, 24 (2007), 1, pp. 52-76
  10. Smith, P. J., Fletcher, T. H., Smoot, L. D., Model for Pulverized Coal-Fired Reactors, Proceedings, Symp. (Int.) on Combustion, Waterloo, Ont., Canada, The Combustion Institute, 1981, pp. 1285-1293
  11. Graham, D. I., Improved Eddy Interaction Models with Random Length and Time Scales, Int. J. Multiphase Flow, 24 (1998), pp. 2, 335-345
  12. Chen, X. Q., Heavy Particle Dispersion in Inhomogeneous, Anisotropic, Turbulent Flows, Int. J. Multiphase Flow, 26 (2000), 4, pp. 635-661
  13. Agnihotri, V., et al., An Eddy Interaction Model for Particle Deposition, J. Aerosol Sci., 47 (2012), 1, pp. 39-47
  14. Wang, Y., James, P. W., On the Effect of Anisotropy on the Turbulent Dispersion and Deposition of Small Particles, Int. J. Multiphase Flow, 25 (1999), 3, pp. 551-558
  15. Kim, J., Moin, P., Moser, R., Turbulence Statistics in Fully Developed Channel Flow at Low Reynolds Number, J. Fluid Mech., 177 (1987), pp. 133-166
  16. Mansour, N. N., Kim, J., Moin, P., Reynolds-Stress and Dissipation-Rate Budgets in a Turbulent Channel Flow, J. Fluid Mech., 194 (1988), pp. 15-44
  17. Zhao, L. H., Andersson, H. I., Gillissen, J. J., Turbulence Modulation and Drag Reduction by Spherical Particles, Phys. Fluids, 22 (2010), pp. 1702-1708
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