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A new analytical approach to simulate the pollutant dispersion in the PBL

Wortmann, S. / Vilhena, M.T. / Moreira, D.M. / Buske, D.

AbstractIn this work, we present a new analytical approach for the solution of the advection–diffusion equation to simulate the pollutant dispersion in the planetary boundary layer. In this method the advection–diffusion equation after transformation by a generalized integral transform is solved by the Laplace transform technique with analytical inversion and is seen to be non-Gaussian. No approximation is made in this so that an exact solution is obtained except for the round-off error. The present model has been evaluated in moderately unstable conditions using the Copenhagen experiment. The performance of the model is discussed qualitatively as well as quantitatively. The proposed model has performed very well with the data from the diffusion experiment considered.

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A new analytical approach to simulate the pollutant dispersion in the PBL

Wortmann, S. / Vilhena, M.T. / Moreira, D.M. / Buske, D.

AbstractIn this work, we present a new analytical approach for the solution of the advection–diffusion equation to simulate the pollutant dispersion in the planetary boundary layer. In this method the advection–diffusion equation after transformation by a generalized integral transform is solved by the Laplace transform technique with analytical inversion and is seen to be non-Gaussian. No approximation is made in this so that an exact solution is obtained except for the round-off error. The present model has been evaluated in moderately unstable conditions using the Copenhagen experiment. The performance of the model is discussed qualitatively as well as quantitatively. The proposed model has performed very well with the data from the diffusion experiment considered.

A new analytical approach to simulate the pollutant dispersion in the PBL

Wortmann, S. / Vilhena, M.T. / Moreira, D.M. / Buske, D.

AbstractIn this work, we present a new analytical approach for the solution of the advection–diffusion equation to simulate the pollutant dispersion in the planetary boundary layer. In this method the advection–diffusion equation after transformation by a generalized integral transform is solved by the Laplace transform technique with analytical inversion and is seen to be non-Gaussian. No approximation is made in this so that an exact solution is obtained except for the round-off error. The present model has been evaluated in moderately unstable conditions using the Copenhagen experiment. The performance of the model is discussed qualitatively as well as quantitatively. The proposed model has performed very well with the data from the diffusion experiment considered.

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Title:

A new analytical approach to simulate the pollutant dispersion in the PBL

Contributors:

Wortmann, S. (author) / Vilhena, M.T. (author) / Moreira, D.M. (author) / Buske, D. (author)

Published in:

Atmospheric Environment ; 39 ; 2171-2178

Publication date:

2005-01-07

Size:

8 pages

ISSN:

DOI:

https://doi.org/10.1016/j.atmosenv.2005.01.003

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

GITT , Laplace transform , Atmospheric dispersion , Analytical solution , Advection–diffusion equation , Planetary boundary layer

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