ACOUSTIC COMPONENT OF TURBULENCE,

Abstract

The intimate relationship between the local speed of sound of a flight environment and the lift and/or drag on a vehicle is discussed. The fact that this parameter will become increasingly significant as the speed increases is pointed out. In addition, it is noted that the usual source of flight bumpiness, wind variations, tends to become less effective as the speed increases. Examples of the sonic gradients which have thus far been observed in the high altitude regions of the earth's atmosphere are presented, and the circumstances under which such gradients would be most effective in perturbating a particular flight path are described. It is concluded that the variable vehicle loads imposed by atmospheric structure are composed of flow and thermodynamic components, and that both of these atmospheric parameters must be studied in the light of our expanding speed and spatial activities. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1962
Accession Number
AD0281703

Entities

People

  • Willis L. Webb

Tags

DTIC Thesaurus Topics

  • Altitude
  • Atmospheres
  • Environment
  • Flight
  • Flight Paths
  • High Altitude
  • Turbulence

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Marine Hydrodynamics
  • Theoretical Analysis.

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers