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Development and application of a diffusion-inertia model for calculating aerosol particle deposition from turbulent flows

Abstract

Three-dimensional simulation of experiments on aerosol particle deposition in a turbulent flow is carried out. The kɛ turbulence model and the diffusion inertia model of particle transport and deposition were used in the simulation. The range of flow velocities and particle sizes is typical for the diffusion and turbophoresis deposition mechanisms. Deposition of particles in a turbulent flow is considered for cases of a direct vertical pipe and for a 90° bend in which the turbophoresis is coupled with centrifugal forces. The calculation results are in good agreement with experimental data. Deviations of results are comparable with those of discrete particle modeling.

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Correspondence to N. I. Drobyshevsky.

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Drobyshevsky, N.I., Zaichik, L.I., Mukin, R.V. et al. Development and application of a diffusion-inertia model for calculating aerosol particle deposition from turbulent flows. J. Engin. Thermophys. 18, 271 (2009). https://doi.org/10.1134/S181023280904002X

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Keywords

  • Large Eddy Simulation
  • Direct Numerical Simulation
  • Particle Deposition
  • Particle Inertia
  • Engineer THERMOPHYSICS