Record Display for the EPA National Library Catalog

RECORD NUMBER: 43 OF 94

OLS Field Name OLS Field Data
Main Title Flow Visualization Experiments on Stably Stratified Flow over Ridges and Valleys.
Author Lee, J. T. ; Lawson, R. E. ; Marsh, G. L. ;
CORP Author Los Alamos National Lab., NM.;Environmental Protection Agency, Research Triangle Park, NC. Environmental Sciences Research Lab.;Northrop Services, Inc., Research Triangle Park, NC.;Department of Energy, Washington, DC.
Year Published 1986
Report Number LA-UR-86-3596 ;CONF-8609204-1; W-7405-ENG-36;
Stock Number DE87001972
Additional Subjects Atmospheric Circulation ; Mathematical Models ; Meteorology ; Mountains ; Valleys ; ERDA/500100
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  DE87001972 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 23p
Abstract
In laboratory experiments it is not possible to simulate all of the phenomena which affect the flow within a valley. It is especially difficult to simulate Coriolis effects which may be important for large valleys and thermal effects associated with diurnal heating and cooling. However, many aspects of this problem can be studied using nonrotating, isothermal flow over geometrically simple models. This paper summarizes a series of such experiments on the flow over a cosine-shaped ridge and within a valley formed by a pair of such ridges when there is a stable ambient flow normal to the axis of the ridge. Three experimental parameters were varied during the study: the steepness of the ridges, the separation distance between the ridges and the Froude number. (ERA citation 12:009887)