Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9460482 | Journal of Aerosol Science | 2005 | 13 Pages |
Abstract
A Lagrangian stochastic model has been formulated to simulate the dispersion of Brownian (submicron-sized) particles in turbulent flows and their deposition onto adjacent flow boundaries. The model is applied to the prediction of Brownian-particle dispersion and deposition under non-isothermal conditions. Thermophoresis is shown to arise naturally from the modelling approach which is based upon a natural extension of Thomson's (1987, Journal of Fluid Mechanics, 180, 529-556) well-mixed condition. In accordance with results present in the literature, it is found that thermophoresis has a significant impact upon model predictions for the deposition of Brownian particles from fully developed turbulence onto hydraulically smooth surfaces.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
Authors
Giovanni Lo Iacono, Andrew M. Reynolds,