Numerical approximation to the effects of the atmospheric stability conditions on the dispersion of pollutants over flat areas.

ABSTRACT: Using the Computational Fluid Dynamics technique (CFD), we explored the effects of the atmospheric stability conditions on the dispersion of solid and gas-phase pollutants emitted from an area source located on a flat region. As an application, the dispersion of pollutants emitted from roads located on flat terrains was considered. Toward that end, we set up a model that describes the dispersion of air pollutants in a small region (< 1 km long) near the ground surface (< 250 m high). It consists of a neutrally stratified model modified to account for the atmospheric stability effects by imposing the near-ground stratification through the Monin-Obukhov similarity theory and the k-ε turbulence model adjusted for each atmospheric stability condition. Using this model, we simulated the dispers

SUBMITTER: Huertas JI 

PROVIDER: S-EPMC8172944 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature