Accession Number:

AD0281703

Title:

ACOUSTIC COMPONENT OF TURBULENCE,

Descriptive Note:

Corporate Author:

ARMY SIGNAL RADIO PROPAGATION AGENCY WHITE SANDS MISSILE RANGE N MEX

Personal Author(s):

Report Date:

1962-07-01

Pagination or Media Count:

15.0

Abstract:

The intimate relationship between the local speed of sound of a flight environment and the lift andor 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 earths 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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE