A simple and practical model for reactive plumes

Citation
L. Delamare et al., A simple and practical model for reactive plumes, INT J ENV P, 14(1-6), 2000, pp. 382-390
Citations number
13
Categorie Soggetti
Environment/Ecology
Journal title
INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION
ISSN journal
09574352 → ACNP
Volume
14
Issue
1-6
Year of publication
2000
Pages
382 - 390
Database
ISI
SICI code
0957-4352(2000)14:1-6<382:ASAPMF>2.0.ZU;2-P
Abstract
Pollutants emitted from industrial stacks can be transformed by chemical re actions. An interesting case is the NO to NO2 conversion due to reactions w ith the ambient ozone. A simple and practical model has been developed to c alculate this conversion in the vicinity of the source. Spatial distributio ns of the reactive species concentrations in the plume are represented by g eneralized Gaussian profiles. The influence of non-linear chemistry is take n into account by means of different dispersion parameters for each species . The model itself consists of a limited number of ordinary differential eq uations which are easy to solve numerically. The wind tunnel reactive plume experiment of Builtjes has been simulated. Comparison between the results of this simple model and calculations involving the complete partial differ ential equations solved on a refined mesh shows that this generalized Gauss ian representation of the transverse profiles is valid except very near the source. It turns out that the influence of chemistry on the dispersion par ameters has to be taken into account in order to predict the NO/NO2 convers ion accurately.