Abstract
Formulating and solving the diffusion-deposition-resuspension problem of particulate released in the planetary boundary layer is of primary importance in assessing their environmental impact. Solid particles are originated, as it is well-known, both by industrial processes (releases from industrial stacks) and by natural processes (e.g. formation of aerosols droplets by chemical reactions in the atmosphere). The physical mechanisms governing the evolution of particles in the atmosphere have been largely investigated in recent years both in laboratory studies and on the field. For instance, as far as the mechanism of dry deposition is concerned, a detailed review of available results has been compiled by Sehmel (Sehmel G.A., 1980). Modelling of dispersion of solid particles has been generally achieved by suitable modifications of the models available to treat dispersion of gaseous pollutants. Most of these models are therefore based on the Gaussian formulation and are the most used in real world applications. More complex modelling based on the eddy-diffusivity approximation has been recently developed to study the evolution of particles in the plumes of coal-fired power plants (see e.g. Hobbs et al., 1979). This complex model includes, besides the usual mechanisms of advection and diffusion, significant phenomena as particle coagulation, and gas-to-particle conversion both in homogeneous and in heterogeneous phase.
Keywords
- Stochastic Differential Equation
- Planetary Boundary Layer
- Line Source
- Atmospheric Dispersion
- Turbulent Field
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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References
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© 1984 Plenum Press, New York
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Melli, P. (1984). Lagrangian Modelling of Dispersion in the Planetary Boundary Layer of Particulate Released by a Line Source. In: De Wispelaere, C. (eds) Air Pollution Modeling and Its Application III. Nato · Challenges of Modern Society, vol 5. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2691-5_10
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DOI: https://doi.org/10.1007/978-1-4613-2691-5_10
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4612-9673-7
Online ISBN: 978-1-4613-2691-5
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