THE TOWER SHADOW EFFECT,

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)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1966
Accession Number
AD0642854

Entities

People

  • J. D. Horn
  • J. E. Cermak

Organizations

  • Atmospheric Sciences Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Buildings And Structures
  • Colorado
  • Fluid Dynamics
  • Fluid Mechanics
  • New Mexico
  • Research Facilities
  • Scale Models
  • Subsonic Wind Tunnels
  • Wind
  • Wind Tunnels
  • Wind Velocity

Readers

  • Climatology
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Fluid Dynamics.