Simulation of a model of dispersion of pollution with chemical reaction in the atmospheric boundary layer

Guilherme Jahnecke Weymar, Daniela Buske, Régis Sperotto de Quadros, Jonas da Costa Carvalho


This work presents an analytical representation for a dispersion model of pollutants that considers the chemical reaction, the model uses the three-dimensional advection-diffusion equation to describe the concentration field in the atmospheric boundary layer and to represent the chemical reaction that the pollutant suffers is included a source term in the equation. To solve the problem we use the modified Adomian Decomposition method associated with the 3D-GILTT method. The model was applied to simulate the dispersion and transportation of the $SO_2$ (sulfur dioxide), a pollutant produced from the burning of mineral coal, emitted by the Presidente Médici thermoelectric plant, located in Candiota / RS. With the analysis of the results it can be observed that the concentrations generated by the model are satisfactory and that the approach used is a new proposal for the description of the concentration field of a substance.


: Chemical reaction; Advection-diffusion equation; Adomian decomposition method; 3D-GILTT method


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