Journal of Engineering Thermophysics

, Volume 18, Issue 1, pp 39–48 | Cite as

Development of the diffusion-inertia model of particle deposition in turbulent flows

  • A. G. Demenkov
  • B. B. Ilyushin
  • D. Ph. Sikovsky
  • V. F. Strizhov
  • L. I. Zaichik


There is presented a modification of the diffusion-inertia model that describes the distribution and deposition of low-inertia particles in turbulent near-wall flows. For the transport equation of the dispersed phase concentration, there is proposed a new wall function that takes into account the nonequilibrium effects and nonlocality of the turbulent transport of the dispersed phase in the near-wall zone caused by the particles’ inertia. This allowed widening the applicability limits of the diffusion-inertia model even for particles with a relaxation time with a magnitude of several hundred. The calculation results for the rate of the particles’ deposition from the turbulent flow to the walls in a round pipe are in good accord with the literature experimental data and the data of direct numerical simulation.


Turbulence Kinetic Energy Direct Numerical Simulation Wall Function Turbulent Transport Viscous Sublayer 
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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • A. G. Demenkov
    • 1
    • 2
  • B. B. Ilyushin
    • 1
    • 2
    • 3
  • D. Ph. Sikovsky
    • 1
    • 2
    • 3
  • V. F. Strizhov
    • 1
  • L. I. Zaichik
    • 1
  1. 1.Nuclear Safety InstituteRussian Academy of SciencesMoscowRussia
  2. 2.Institute of Thermophysics, Siberian BranchRussian Academy of SciencesNovosibirskRussia
  3. 3.Novosibirsk State UniversityNovosibirskRussia

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