Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Flow and dispersion of pollutants over two-dimensional hills : summary report on Joint Soviet-American study /
Author Khurshudyan, Leon H. ; Snyder, William H. ; Nekrasov, Igor V.
Other Authors
Author Title of a Work
Snyder, William H.
Nekrasov, Igor V.
CORP Author Environmental Sciences Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Environmental Sciences Research Laboratory,
Year Published 1982
Report Number EPA-600/4-81-067
Stock Number PB82-121179
OCLC Number 700497674
Subjects Pollution--United States--Experiements. ; Field experiments--United States. ; Wind tunnels--Experiments.
Additional Subjects Air pollution ; Hills ; Flow rate ; Diffusion ; Transport properties ; Mathematical models ; Comparison ; Wind velocity ; Wind tunnel models ;
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKBD  EPA-600/4-81-067 Research Triangle Park Library/RTP, NC 02/07/2011
NTIS  PB82-121179 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 07/22/2019
Collation xi, 131 p. : ill., charts ; 28 cm.
Wind tunnel experiments and theoretical models concerning the flow structure and pollutant diffusion over two-dimensional hills of varying aspect ratio are described and compared. Three hills were used, having small, medium and steep slopes. Measurements were made of mean and turbulent velocity fields upwind, over and downwind each of the hills. Concentration distributions were measured downwind of tracer sources placed at the upwind base, at the crest, and at the downwind base of each hill. These data were compared with the results of two mathematical models developed in the U.S.S.R. for treating flow and dispersion over two-dimensional hills. Measured concentration fields were reasonably well predicted by the models for a hill of small slope. The models were less successful for hills of steeper slope, because of flow separation from the lee side of the steepest hill and high turbulence and much-reduced mean velocity downwind of the hill of medium slope.
"August 1981." Also available online. Location last verified: 9/30/10. Includes bilbiographical references (p.126-130) "EPA-600/4-81-067."