Record Display for the EPA National Library Catalog


Main Title Computer Modeling of Pollutant Dispersion Around Buildings: Current Status.
Author Selvam, R. P. ; Huber, A. H. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. ;National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div. ;Arkansas Univ., Fayetteville. Dept. of Civil Engineering.
Publisher Jan 95
Year Published 1995
Report Number EPA/600/A-94/253;
Stock Number PB95-177127
Additional Subjects Buildings ; Air pollution ; Computational fluid dynamics ; Advection ; Velocity distribution ; Turbulence models ; Steady state ; Turbulent flow ; Wind velocity ; Mathematical models ; Pollutant dispersion
Library Call Number Additional Info Location Last
NTIS  PB95-177127 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 15p
The current status of computer modeling of pollutant dispersion around a building is discussed. Presently, methods of Computation Fluid Dynamics (CFD) with a closure approach using equations for the turbulent kinetic energy and dissipation rate are believed to provide a practical solution for many applications. F3D kappa epsilon was used to compute the steady-state flow field around a building. Using this computed flow field, pollutant concentrations were computed using the C3D kappa epsilon model. Three versions of the C3D kappa epsilon model are evaluated by modifying the numerical approximations for the advection term using steady upwind, steady hybrid, and unsteady upwind procedures. The computed results are comparable with wind-tunnel measurements.