||Wind Tunnel Study of the Flow Structure and Dispersion from Sources Upwind of Three-Dimensional Hills.
Snyder, W. H. ;
Britter, R. E. ;
||Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab. ;Cambridge Univ. (England). Dept. of Engineering.
Atmospheric diffusion ;
Air pollution ;
Wind tunnel models ;
Atmospheric dispersion ;
Atmospheric boundary layer
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The flow fields around moderately steep hills of triangular cross section and varying crosswind aspect ratio and around a bell-shaped hill were examined by using models immersed in a simulated neutral atmospheric boundary layer in a meteorological wind tunnel. The triangular hills ranged from an axisymmetric cone to a two-dimensional ridge. Concentration patterns resulting from sources of three heights placed upwind of each of these hills were examined to determine plume deformations and terrain amplification factors.