We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
New analytical formulations for calculation of dispersion parameters of Gaussian model using parallel CFD.
- Authors
Ebrahimi, M.; Jahangirian, A.
- Abstract
New analytical formulations are presented for calculation of most effective parameters in the Gaussian plume dispersion model; the standard deviations of concentration for horizontal and vertical dispersion in neutral atmosphere conditions. Employing parallel Computational Fluid Dynamics (CFD) as a powerful tool, some well-known analytical generations of Pasquill-Gifford-Turner experimental data are modified. To achieve this aim, CFD simulations are carried out for single stack dispersion on flat terrain surface and ground level concentrations are determined in different distances. An inverse procedure in Gaussian plume dispersion model is then applied and standard deviations of horizontal and vertical dispersions are obtained. The values are compared with those of the well-known methods of Doury, Briggs and Hanna in two cases: the experimental data for release of krypton-85 from 100 m high and pollution dispersion from three 28 m high stacks of Besat power plant near Tehran. The comparison indicates that new formulations for plume dispersion are more accurate than other well-known formulations.
- Subjects
GAUSSIAN processes; COMPUTATIONAL fluid dynamics; STANDARD deviations; KRYPTON; DIFFUSION in hydrology; ANALYTICAL mechanics; POWER plants
- Publication
Environmental Fluid Mechanics, 2013, Vol 13, Issue 2, p125
- ISSN
1567-7419
- Publication type
Article
- DOI
10.1007/s10652-012-9260-5