Accession Number : AD0766852
Title : Nonlinear Air Acoustics.
Descriptive Note : Final rept. 1 Feb 71-31 Dec 72,
Corporate Author : TEXAS UNIV AUSTIN APPLIED RESEARCH LABS
Personal Author(s) : Blackstock,David T.
Report Date : 20 FEB 1973
Pagination or Media Count : 17
Abstract : Basic research on nonlinear acoustics in air was performed during calendar years 1971 and 1972. The projects described in this report are as follows: Saturation of acoustic waves; directional beams of intense sound; diffraction of N waves; focusing of N waves by a spherical mirror; propagation of intense periodic waves in a tube; propagation of finite-amplitude noise; propagation of intense acoustic signals through the earth's atmosphere; parametric acoustic array in air; and, parametric reception.
Descriptors : (*SOUND TRANSMISSION, ATMOSPHERES), PROPAGATION, DIFFRACTION, FOCUSING, NOISE
Subject Categories : Acoustics
Distribution Statement : APPROVED FOR PUBLIC RELEASE