WIT Press


A Method To Calculate Dispersion Parameters In A Shear-dominated Stable Boundary Layer

Price

Free (open access)

Volume

21

Pages

7

Published

1997

Size

500 kb

Paper DOI

10.2495/AIR970201

Copyright

WIT Press

Author(s)

G.A. Degrazia, U. Rizza, C. Mangia & T. Tirabassi

Abstract

A method to evaluate dispersion parameters in a shear dominated stable planetary boundary layer is described in this paper. The method is based on the local similarity and Taylor's diffusion theory. The model indicates that in the lower half of the stable boundary layer the turbulence structure is nearly homogeneous. The present analysis allows us to conclude that the statistical diffusion theory can reproduce the contaminant dispersion in a stable turbulence described by the local similarity theory. 1 Introduction In the last twenty years, there has been a wide development of plume dispersion models in a convective boundary layer. However, the modelling o

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