Accession Number : AD0642854

Title :   THE TOWER SHADOW EFFECT,

Corporate Author : ATMOSPHERIC SCIENCES LAB WHITE SANDS MISSILE RANGE N MEX

Personal Author(s) : Cermak,J. E. ; Horn,J. D.

Report Date : AUG 1966

Pagination or Media Count : 29

Abstract : A practical example of obstacle-induced flow in the atmosphere that constitutes a substantial meteorological measurement problem is the 'wind shadow' effect of a meteorological tower on wind velocity in the lee of the structure. At White Sands Missile Range, New Mexico, a 150-meter tower is utilized to obtain ballistic winds in the lower portion of the planetary boundary layer. An experiment has been conducted concerning the flow around a 1:4 scale model section of the tower in the subsonic wind tunnel at the Fluid Dynamics Laboratory, Colorado State University, Ft. Collins, Colorado. Comparison of field results and experiment suggests a maximum wind decrement of 40% in the tower wake. (Author)

Descriptors :   (*WIND, MEASUREMENT), TOWERS, ATTENUATION, MODEL TESTS, EXPERIMENTAL DATA, METEOROLOGICAL PHENOMENA

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE