Vilhena M. T., Costa C. P., Moreira D. M., Tirabassi T. A semi-analytical solution for the three-dimensional advection-diffusion equation considering non-local turbulence closure. In: Atmospheric Research, vol. 90 (1) pp. 63 - 69. Elsevier B.V, 2008. |

Abstract (English) |
Atmospheric air pollution turbulent fluxes can be assumed to be proportional to the mean concentration gradient. This assumption, along with the equation of continuity, leads to the advection-diffusion equation. Moreover, large eddies are able to mix scalar quantities in a manner that is counter to the local gradient. In this work we present a semi-analytical solution for the three-dimensional steady-state advection-diffusion equation, considering non-local turbulence closure using the Generalized Integral Advection Diffusion Multilayer Technique (GIADMT). We report some examples of applications of the new solution for two different datasets and for a water tank experiment. | |

DOI: | 10.1016/j.atmosres.2008.04.002 | |

Subject | Advection-diffusion equation Analytical solutions Non-local closure Countergradient Air pollution |

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