Pollutants dispersion simulation in an eulerian model considering eddy diffusivities that depend of the source distance and the wind meandering phenomenon

Viliam Cardoso da Silveira, Gervásio Annes Degrazia, Daniela Buske

Abstract


The aim of this work is to simulate the pollutants dispersion in an Eulerian model considering the wind meandering phenomenon and eddy diffusivities in terms of source distance. The pollutants dispersion model solve analytically the adcevction-diffusion equation by 3D-GILTT technique. To consider the wind meandering in the dispersion model, we decompose the wind in the u and v
components and we calculate the autocorrelation functions and wind spectra. The results show a good agreement between the observed and simulated concentrations.


Keywords


Pollutants dispersion; Advection-diffusion equation; 3D-GILTT technique

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DOI: http://dx.doi.org/10.5902/2179460X30719

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