Abstract
A special attention has been given to the issue of searching analytical solutions for the advection-diffusion equation in order to simulate the pollutant dispersion in the Atmospheric Boundary Layer (ABL). In this work we take a step forward assuming a transient three-dimensional problem with nonlocal closure of the turbulent diffusion. The problem of closing the turbulence in the advection-diffusion equation is modified considering a generic equation for the turbulent diffusion. The countergradient term in the turbulence closure made additional terms to appear in the advection-diffusion equation and these terms are related to the asymmetrical transport in the convective boundary layer. This new equation is solved by the 3D-GILTT method. Numerical results and statistical comparisons with experimental data are presented.
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The authors thank CNPq and FAPERGS for partial financial support of this work.
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Buske, D., Vilhena, M.T.B., Bodmann, B.E.J., Quadros, R.S., Tirabassi, T. (2015). Pollutant Dispersion in the Atmosphere: A Solution Considering Nonlocal Closure of Turbulent Diffusion. In: Constanda, C., Kirsch, A. (eds) Integral Methods in Science and Engineering. Birkhäuser, Cham. https://doi.org/10.1007/978-3-319-16727-5_9
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DOI: https://doi.org/10.1007/978-3-319-16727-5_9
Publisher Name: Birkhäuser, Cham
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