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Some numerical studies of surface boundary-layer flow above gentle topography
Authors:P A Taylor
Institution:(1) Dept. of Oceanography, University of Southampton, England;(2) Atmospheric Environment Service, Downsview, Canada
Abstract:A numerical model of two-dimensional surface boundary-layer flow based on a non orthogonal coordinate mapping is developed. Results show good agreement with previous computations using conformal mapping techniques for flow over a periodic wavy surface and over an isolated hill. Results are presented for flow over Gaussian hills and valleys and over smooth sloping escarpments. For a 1 in 4 Sine ramp, good agreement is obtained with Freeston's (1974) wind-tunnel measurements.Presented under the title lsquoAtmospheric boundary-layer flow above gentle topographyrsquo at the 10th Annual Congress of the Canadian Meteorological Society, Quebec City, May 26–28, 1976.
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