%0 Journal Article %A Carvalho, J. C. %A Degrazia, Gervasio Annes %A Anfossi, Domenico %A Castelli, S. Trini %D 1999 %I Begell House %N 4 %P 19 %R 10.1615/HybMethEng.v1.i4.10 %T SIMULATION OF COPENHAGEN TRACER DIFFUSION EXPERIMENT BY MEANS OF A LAGRANGIAN PARTICLE MODEL %U https://www.dl.begellhouse.com/journals/1a37c0433d303e8b,38aa9f1f59956da6,311337ff15f3e800.html %V 1 %X 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. %8 1999-12-01