Record Display for the EPA National Library Catalog


Main Title A methodology for treating large localized emissions of reactive pollutants /
Author Fabrick, A. J. ; Nakayame, P. I. ; Fredricksen., E. J.
Other Authors
Author Title of a Work
Nakayama, P. I.
Fredricksen, E. J.
Viebrock, Herbert J.
CORP Author JRB Associates, Inc., La Jolla, Calif.;National Environmental Research Center, Research Triangle Park, N.C. Meteorology Lab.
Publisher Meteorology Laboratory, National Environmental Research Center,
Year Published 1974
Report Number EPA-650/4-74-006; EPA-68-02-1238; PB251066
Stock Number PB251066
OCLC Number 52565070
Subjects Atmospheric diffusion--Mathematical models ; Air--Pollution--Mathematical models
Additional Subjects Computerized simulation ; Air pollution ; Atmospheric diffusion ; Boundary layer ; Dispersions ; Concentration(Composition) ; Plumes ; Particles ; Photochemical reactions ; Transport properties ; Mathematical models ; Computer programs ; Nitrogen oxides ; Navier-Stokes equations ; Numerical integration ; Gaussian plume model ; VARMINT computer program
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 650-4-74-006 Headquarters Library/Washington,DC 04/27/2012
EJBD  EPA 650-4-74-006 Headquarters Library/Washington,DC 10/02/2014
EKBD  EPA-650/4-74-006 Research Triangle Park Library/RTP, NC 08/29/2017
NTIS  PB-251 066 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 133 pages : illustrations, charts ; 28 cm.
This report presents the results of a study to develop a numerical model to accurately calculate the trajectories and concentrations of reactive pollutants emitted from localized sources. The numerical model employs the solution of the full three-dimensional Navier-Stokes equations along with the solution of the species density equation by summing over Lagrangian mass points. The mass points are transported by the mean wind field and moved with a random walk technique that simulates the turbulent diffusion. The effect of chemical reactions are modeled by reweighing the Lagrangian mass points. The equations are solved for regions of space where terrain features or buildings may cause strong distortions in the flow field. The numerical techniques are verified by comparisons with analytic formulas, including the boundary layer above a plate and the Gaussian plume. The method was used to calculate photochemically reacting plumes using a simplified inorganic photochemical reaction model. Portions of this document are not fully legible.
"EPA project officer: Herbert Viebrock." "Prepared for Office of Research and Development, U.S. Environmental Protection Agency." "February 1974." "Contract no. 68-02-1238; Program element no. 1AA009." "EPA-650/4-74-006." Includes bibliographical references. PB 251 066--NTIS.