Simulação transiente unidimensional da dispersão de poluentes na atmosfera considerando o fechamento não local da turbulência

Abstract

The objective of this work is to evaluate the dispersion of pollutants in the atmosphere considering the diffusion equation, the non-local closing term of the turbulence and the w component of the average wind. To solve the advection-diffusion equation, the generalized integral transform (GILTT) will be used. The results are in accordance with the literature and the concentration shows a peaks in the initial time and then decreases and becomes homogeneous. The inclusion of the term w causes na upward or downward behavior of the pollutant plume, depending on whether it is positive or negative. The present model presents the expected behavior of the pollutant plume and can be used for regulatory applications of air quality.