OLS : Record


Main Title A methodology for treating large localized emissions of reactive pollutants /
Author Fabrick, A. J.; Nakayame, P. I.; Fredricksen., E. 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,
Place Published Research Triangle Park, NC :
Year Published 1974
Report Number EPA/650/4-74/006; EPA-68-02-1238
Stock Number PB-251 066
OCLC Number 53140401
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
Subject Added Ent Atmospheric diffusion--Mathematical models.; Air--Pollution--Mathematical models.
Internet Access
Description Access URL
Library   Call Number Additional Info Location Date Modified
NTIS PB-251 066 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation v, 133 pages : illustrations, charts ; 28 cm.
Abstract 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.
Notes "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." PB 251 066--NTIS. Includes bibliographical references. Microfiche.
Author Added Ent
Fabrick, A.J.;
Nakayama, P.I.;
Fredricksen, E.J.;
Viebrock, Herbert J.
Corporate Au Added Ent United States. Environmental Protection Agency. Office of Research and Development. ; National Environmental Research Center (Research Triangle Park, N.C.) Meteorology Laboratory. ; JRB Associates.
Title Ser Add Ent Research reporting series Environmental monitoring ;
PUB Date Free Form 1975.
Series Title Untraced Environmental monitoring ; EPA-650/4-74-006
NTIS Prices PC A07/MF A01
BIB Level m
OCLC Time Stamp 20031003124545
Cataloging Source OCLC/T
Language eng
Origin OCLC
OCLC Rec Leader 01774nam 2200409Ka 45020