Published 4 issues per year
ISSN Print: 1099-2391
ISSN Online: 2641-7359
SIMULATION OF COPENHAGEN TRACER DIFFUSION EXPERIMENT BY MEANS OF A LAGRANGIAN PARTICLE MODEL
ABSTRACT
Using simulations with a stochastic Lagrangian model of turbulent diffusion, we have studied the dispersion of contaminants in the atmospheric boundary layer when both thermal and mechanical turbulent forcing terms are present. The model is based on a generalized form of the Langevin equation and in the vertical direction the probability density function (PDF) is non-Gaussian and represented by two different PDFs. By employing the Copenhagen tracer diffusion experiment, the model performances are evaluated against observed ground-level concentrations.
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Carvalho Jonas C., de Vilhena Marco Túllio M.B., Thompson Mark, An iterative langevin solution for turbulent dispersion in the atmosphere, Journal of Computational and Applied Mathematics, 206, 1, 2007. Crossref