Record Display for the EPA National Library Catalog


Main Title Potential flow model for Gaussian plume interaction with simple terrain features /
Author Bass, Arthur. ; Strimaitis, D. G ; Egan, B. A.
Other Authors
Author Title of a Work
Strimaitis, David.
Egan, B. A.
CORP Author Environmental Research and Technology, Inc., Concord, MA.;Environmental Sciences Research Lab., Research Triangle Park, NC. Meteorology and Assessment Div.
Publisher U.S. Environmental Protection Agency, Environmental Sciences Research Laboratory,
Year Published 1981
Report Number EPA/600/4-81/008; EPA-68-02-2759
Stock Number PB81-171837
OCLC Number 48816544
Subjects Plumes (Fluid dynamics) ; Smoke plumes ; Dispersion ; Particle size analysis
Additional Subjects Terrain models ; Air pollution ; Mathematical models ; Comparison ; Plumes ; Atmospheric diffusion ; Dispersion ; Concentration(Composition) ; Electric power plants ; Computer programs ; Gaussian plume models ; Numerical solution
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ESAD  EPA 600-4-81-008 Region 10 Library/Seattle,WA 09/27/2017
NTIS  PB81-171837 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 202 pages ; 28 cm
The theory of turbulent plumes embedded within potential flow fields is discussed for flows modified by special complex terrain situations. Both two-dimensional and three-dimensional isolated terrain obstacles are considered. Concentration estimates are evaluated using a Gaussian solution to the appropriate diffusion equation; dispersion coefficients are modified to account for terrain-induced kinematic constraints, and plume centerline trajectory is obtained from a stream line of the potential flow. Specific limitations to the theory and its applicability are reviewed. A computer algorithm is developed and documented to perform these calculations. Dispersion estimates and ground-level concentrations are given for a variety of meteorological situations. Parameters of the problem include obstacle height, effective source height, distance between source and obstacle, crosswind aspect ratio of the obstacle, and atmospheric stability. The potential flow theory, originally applicable to neutral flows, is extended by an empirical approximation to slightly stable flows. Model computations are compared to laboratory experimental results for neutral and stable flows, and to field measurements from the Tennessee Valley Authority Widow Creek Power Plant.
"March 1981." Microfiche.