Accession Number : AD0699375

Title :   THE THEORY OF SOUND PROPAGATION IN A FLUID HALF-SPACE BOUNDED BY A RIGID SURFACE.

Descriptive Note : Final rept.,

Corporate Author : TEXAS UNIV EL PASO

Personal Author(s) : Self,Samuel L.

Report Date : AUG 1968

Pagination or Media Count : 41

Abstract : The propagation of sound from a point source situated at some height above a hard surface is studied. A solution is obtained for the intensity in the shadow zone as a function of the gradient of sound speed in a horizontally homogeneous atmosphere in which the speed of sound is linearly decreasing with altitude. The solution is obtained for the intensity as a function of frequency for both a monochromatic continuous source and a pulse (delta function) source. (Author)

Descriptors :   (*ATMOSPHERES, SOUND TRANSMISSION), (*SOUND TRANSMISSION, INTENSITY), BOUNDARY VALUE PROBLEMS, INTENSITY, VELOCITY, SOURCES, ALTITUDE, ATTENUATION, DIFFRACTION, FREQUENCY, ACOUSTICS, BESSEL FUNCTIONS

Subject Categories : Atmospheric Physics
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE