Modeling particle deposition and distribution in a chamber with a two-equation Reynolds-averaged Navier-Stokes model

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1770-1780
Journal / PublicationJournal of Aerosol Science
Volume37
Issue number12
Publication statusPublished - Dec 2006
Externally publishedYes

Abstract

A Lagrangian simulation for aerosol particle transport and deposition in a chamber is developed. The eddy interaction model (EIM) is adopted to generate the instantaneous turbulent fluctuating velocity field. It is found that a satisfactory result can be obtained only when the near-wall grid is sufficiently fine and the near-wall turbulent kinetic energy is damped effectively according to its component normal to the wall. Seven particle size groups ranging from 0.01 to 10 μ m are studied. A comparison between the current numerical model and a semi-empirical expression indicates that improved deposition fraction results were obtained. The particle deposition and particle fate in the chamber are also presented. © 2006 Elsevier Ltd. All rights reserved.

Research Area(s)

  • Indoor environments, Lagrangian model, Near-wall turbulence, Particle deposition, Reynolds-averaged Navier-Stokes model