WIT Press

Modelling Dispersion Of Heavy Participate Matter

Price

Free (open access)

Paper DOI

10.2495/AIR990811

Volume

37

Pages

10

Published

1999

Size

977 kb

Author(s)

A. Dauriat and V. Vesovic

Abstract

This work examines the influence of the particle shape on heavy particle dispersion in a neutrally stratified atmosphere. The particle trajectories are analysed in terms of particle landing positions downwind from the source. For this purpose an already existing Lagrangian model [1] has been modified to deal with non-spherical particles. The particle trajectories are calculated by numerically solving Newton's equations of motion, while the wind velocity is modelled by means of a Markov chain scheme. The simulation runs have been performed for lOOp, particles of different non-sphericity released from the elevated source. The results indicate that the shape of the particle is a very important parameter in determining the deposition curves. In general with increasing non

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