Accession Number : AD0778868

Title :   Propagation of Plane Acoustic Noise of Finite Amplitude,

Corporate Author : TEXAS UNIV AUSTIN APPLIED RESEARCH LABS

Personal Author(s) : Pestorius,Frederick M.

Report Date : AUG 1973

Pagination or Media Count : 236

Abstract : The author investigates the propagation in air of plane finite-amplitude noise waves. The reported research is both theoretical and experimental, and the results obtained are valid both before and after shock formation. In the theoretical portion of the work, a new model called modified weak-shock theory is discussed. In this model the effects of ordinary weak-shock theory and Kirchhoff tube wall attenuation and dispersion are combined. The inclusion of tube wall effects is necessary because the experimental work is done in a pipe. The modified weak-shock theory is implemented in a computer algorithm. (Modified author abstract)

Descriptors :   *Sound waves, Wave propagation, Plane waves, Noise(Sound), Shock waves, Waveforms, Computer programs, Numerical analysis, Theses

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE