Record Display for the EPA National Library Catalog
RECORD NUMBER: 74 OF 251
|OLS Field Name||OLS Field Data|
|Main Title||Consequence Analysis for ISC-PRIME.|
|Author||Paine, R. J. ; Lew, F. ;|
|CORP Author||ENSR Corp., Acton, MA.;Electric Power Research Inst., Palo Alto, CA.;Environmental Protection Agency, Research Triangle Park, NC.|
|Additional Subjects||Air pollution dispersion ; Air pollution sources ; Plumes ; Computer models ; Diffusion modeling ; Atmospheric diffusion ; Atmospheric transport ; Stack gases ; Buildings ; Ecological concentration ; Flow characteristics ; Aerodynamics ; Ground level ; Point sources ; Mixing height ; Urban areas ; Rural areas ; ISCST3 model ; ISC-PRIME model ; ISCST(Industrial Source Complex Short Term) ; PRIME(Plume Rise Model Enhancements) ; Downwash|
Aerodynamic building downwash is a phenomenon caused by eddies created by air movement around building obstacles. Through the use of the Industrial Source Complex (ISCST3) model, EPA modeling guidelines have incorporated these effects in ground-level concentration calculations. In 1992, the Electric Power Research Institute (EPRI) decided to embark upon a program (project PRIME: Plume Rise Model Enhancements) to design a new downwash model to correct the deficiencies in the ISCST3 model. The resulting downwash module, PRIME, has been installed in the ISCST3 model as a replacement for the current algorithm; the resulting model is referred to as 'ISC-PRIME'. This report describes the design of the model test runs involved and provides a summary of the results with comments on the differences between the two models.