Modelagem da dispersão de poluentes utilizando o modelo 3D-GILTT

Abstract

This dissertation presents an analytical solution for the transient three-dimensional advection-diffusion equation in order to simulate pollutant dispersion in the atmosphere. Therefore, the advection-diffusion equation is solved by combination of Laplace's transform and GILTT technique (Generalized Integral Laplace Transform Technique) with Fickian closure of turbulence. For model validation, numerical and statistical results are compared with experimental results from literature (Copenhagen and Kinkaid). In the simulation of a more realistic turbulent boundary layer, will be considered one situation of pollutant release where micrometeorological components are calculated using WRF (Weather Research and Forecast). Therefore is considered a critical event of pollution resultant of emissions from burnings. Due to the complexity of this type of event, some modifications are made in the model.