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Particle Deposition in a Turbulent Channel Flow

[+] Author Affiliations
Mazdak Parsi

The University of Tulsa, Tulsa, OK

Mohammad Mahdavimanesh

Islamic Azad University, Neyriz Branch, Neyriz, Fars, Iran

Aminreza Noghrehabadi

Shahid Chamran University, Ahvaz, Khouzestan, Iran

Goodarz Ahmadi

The University of Clarkson, Postdam, NY

Paper No. FEDSM2013-16628, pp. V01CT20A014; 5 pages
doi:10.1115/FEDSM2013-16628
From:
  • ASME 2013 Fluids Engineering Division Summer Meeting
  • Volume 1C, Symposia: Gas-Liquid Two-Phase Flows; Industrial and Environmental Applications of Fluid Mechanics; Issues and Perspectives in Automotive Flows; Liquid-Solids Flows; Multiscale Methods for Multiphase Flow; Noninvasive Measurements in Single and Multiphase Flows; Numerical Methods for Multiphase Flow; Transport Phenomena in Energy Conversion From Clean and Sustainable Resources; Transport Phenomena in Materials Processing and Manufacturing Processes; Transport Phenomena in Mixing; Turbulent Flows: Issues and Perspectives
  • Incline Village, Nevada, USA, July 7–11, 2013
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5556-0
  • Copyright © 2013 by ASME

abstract

Motion of spherical solid particles in a fully developed turbulent channel flow is numerically simulated. This study presents a computational model for Lagrangian simulation of particle transport, dispersion and deposition. The instantaneous fluctuating velocities are simulated using a Langevin model. Finite volume method is used to solve the steady state conservation of mass, momentum and RNG k-ε equations. The DNS data for the anisotropic turbulent intensities are used in the analysis. The particle equation of motion takes into account the Stokes drag, Saffman lift force, the Brownian and gravitational forces. The Brownian diffusion is simulated as a white noise process. Starting with an initially uniform concentration near the wall, an ensemble of particle trajectories is generated. The computational model predictions for particle deposition velocity are compared with the existing experimental data and earlier simulation results and good agreement was achieved.

Copyright © 2013 by ASME

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