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Main Title A coupled two-dimensional diffusion and chemistry model for turbulent and inhomogeneously mixed reaction systems /
Author Hilst, Glenn R. ; Donaldson, Coleman duP. ; Teske, Milton ; Contiliano, Ross ; Frieberg., Johnny
Other Authors
Author Title of a Work
Hilst, Glenn R.
Calder, Kenneth L.
CORP Author Aeronautical Research Associates, of Princeton, Inc., N.J.
Publisher Office of Research and Monitoring, U.S. Environmental Protection Agency,
Year Published 1973
Report Number EPA-R4-73-016c
Stock Number PB-234 193
OCLC Number 47032430
Additional Subjects Atmospheric diffusion ; Atmospheric motion ; Air pollution ; Turbulent diffusion ; Transport properties ; Chemical reactions ; Reaction kinetics ; Mixing ; Photochemistry ; Mathematical models
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA R4-73-016c Headquarters Library/Washington,DC 09/27/2018
EKBD  EPA/R4-73-016c Research Triangle Park Library/RTP, NC 06/01/2001
ELBD ARCHIVE EPA R4-73-016c Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD RPS EPA R4-73-016c repository copy AWBERC Library/Cincinnati,OH 09/21/2016
NTIS  PB-234 193 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 1 volume (various foliations) : illustrations ; 28 cm.
The primary intent of the work has been the assessment of the combined effects of turbulent diffusion and inhomogeneous chemistry on the dispersion and chemical alteration of reactive pollutants and natural constituents of the lower atmosphere. The fundamental chemical kinetic equations for an inhomogeneously mixed binary reaction system are derived exactly and solved for various initial conditions in order to assess the effects of inhomogeneous mixing on chemical reaction rates. These effects are shown to be highly significant in several atmospheric chemistry situations, particularly when the reactants emanate from multiple sources. An approximate second-order closure of the chemical sub-model is then developed and coupled with the second-order (invariant) turbulent diffusion model. Initial calculations of the interaction of turbulent diffusion and chemical reactions are presented, including a simulation of a multiple freeway situation. Conditions under which chemical reactions are diffusion and mixedness limited are illustrated.
EPA project officer: Kenneth L. Calder. Prepared by Aeronautical Research Associates of Princeton, Inc. "March 1973." Interim report. "Meteorology Laboratory, National Environmental Research Center." Includes bibliographical references. "EPA-R4-73-016c."