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Main Title Plume-in-Grid Treatment of Major Elevated Point-Source Emissions in Models-3.
Author Gillani, N. V. ; Biazar, A. ; Wu, Y. L. ; Godowitch, J. ; Ching, J. ;
CORP Author Alabama Univ. in Huntsville. ;National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div.;Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab.;Tennessee Valley Authority, Muscle Shoals, AL.
Publisher 1997
Year Published 1997
Report Number EPA-DW64937190 ;TV-88817V;
Stock Number PB98-116452
Additional Subjects Point sources ; Air pollution dispersion ; Emissions ; Mathematical models ; Plumes ; Air pollution sources ; Atmospheric diffusion ; Diffusion modeling ; Boundary conditions ; Photochemistry ; Atmopsheric chemistry ; Euler equations of motion ; Lagrangian function ; Grids(Coorinates) ; Computerized simulation ; CMAQ(Community Multiscale Air Quality) ; Community Multiscale Air Quality Model ; Models-3 modeling system
Library Call Number Additional Info Location Last
NTIS  PB98-116452 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 12p
The plume-in-grid modeling approach for treating the subgrid scale dispersion, transport, and chemistry of pollutants contained in plumes released from major point source stacks is described. A plume dynamics model provides the plume rise height, plume position, and the horizontal and vertical plume dispersions in the subgrid scale phase when the pollutants are to be simulated by the Lagrangian reactive plume module. A coupling exists between the models as the grid concentrations provide boundary conditions for entrainment to the subgrid plume sections, and a feedback ocurrs when the plume size and chemical criteria indicate a plume's pollutants are to be transferred to the grid system for further simulation. The methods for simulating the plume processes are also presented and the input/output data involved with these two components of the Models 3 plume-in-grid approach are discussed.