One-dimensional simulation of the pollutants dispersion in the atmosphere taking into account the turbulence nonlocal closure
DOI:
https://doi.org/10.5902/2179460X66657Keywords:
Diffusion equation, GILTT technique, Nonlocal closure, Pollutants dispersionAbstract
The aim of this work is to evaluate the pollutants dispersion in the atmosphere, considering the diffusion equation, turbulencenonlocal closure term and the vertical component of the mean wind. To solve the diffusion equation will be utilized the generalizedintegral transform technique with analytical solution of the transformed problem by Laplace transform. The results are in agreementwith the literature and the concentration presents one peak at the initial time and then decreases and becomes homogeneous. Theinclusion of the w term causes an ascending or descending behavior of the pollutants plume, depending if the term is positiveor negative. The present model presents the behavior expected of the pollutant plume and can be used for air quality regulatoryapplications.
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BUSKE, D., VILHENA, M. T., MOREIRA, D. M., TIRABASSI, T. (2007a). Simulation of pollutant dispersion for low wind conditions instable and convective planetary boundary layer. Atmospheric Environment, 41, 5496–5501.
BUSKE, D., VILHENA, M. T., MOREIRA, D. M., TIRABASSI, T. (2007b). An analytical solution of the advection-diffusion equationconsidering non-localturbulence closure. Environmental Fluid Mechanics (Dordrecht), 7, 43–54.
BUSKE, D., VILHENA, M. T., TIRABASSI, T., BODMANN, B. (2012). Air pollution steady-state advectiondiffusion equation: the generalthree-dimensional solution. Journal of Environmental Protection(Print), 3, 1124–1134.
DEGRAZIA, G. A., VELHO, H. F. C., CARVALHO, J. C. (1997). Nonlocal exchange coefficients for the convective boundary layer derivedfrom spectral properties. Contributions to Atmospheric Physics, pp. 57–64.
DEGRAZIA, G. A., MOREIRA, D. M., VILHENA, M. T. (2001). Derivation of an eddy diffusivity depending on source distance forvertically inhomogeneous turbulence in a convective boundary layer. Journal of Applied Meteorology, pp. 1233–1240.
DOP, H. V., VERVER, G. (2001). Countergradient transport revisited. Journal of Atmospheric Sciences, 58, 2240–2247.
MANGIA, C., MOREIRA, D. M., SCHIPA, I., DEGRAZIA, G. A., TIRABASSI, T., RIZZA, U. (2002). Evaluation of a new eddy diffusivityparametrisation from turbulent eulerian spectra in different stability conditions. Atmospheric Environment, 36, 67–76.
MOREIRA, D. M., VILHENA, M. T., BUSKE, D., TIRABASSI, T. (2009). The state-of-art of the giltt method to simulate pollutant dispersionin the atmosphere. Atmospheric Research, 92, 1–17.
WYNGAARD, J. C., WEIL, J. C. (1991). Transport asymmetry in skewed turbulence. Physics Fluids A, 3, 155–162.
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- 2022-07-14 (2)
- 2021-11-08 (1)
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