Author(s)

A. Sarma, N. Ahmad, D. Bacon, Z. Boybeyi, T. Dunn, M. Hall, and P. Lee.

Abstract

Application of adaptive grid refinement to plume modeling A. Sarma, N. Ahmad, D. Bacon, Z. Boybeyi, T. Dunn, M. Hall, and P. Lee. Science Applications International Corporation, 1710 Goodridge Dr., McLean, Virginia, USA. E-Mail: sarma@apo.saic.com Abstract Resolving the flow and pollutant concentrations at the highest possible resolution is of paramount importance in atmospheric chemistry calculations especially when dealing with chemical reactions in plumes. The Operational Multiscale Environment model with Grid Adaptivity (OMEGA) is used to explore the modeling of pollutant plumes. OMEGA is built upon an unstructured adaptive grid made up of triangular prisms. OMEGA also has an embedded Atmospheric Dispersion Model (ADM). The ADM uses a puff approach to disperse the pollutants. The particles are treated as centroids of growing puffs, with the growth determined by the ambient turbulent characteristics. OMEGA also features a particle diffusion algorithm using a M

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