Propagation of Plane Acoustic Noise of Finite Amplitude

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.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1973
Accession Number
AD0778868

Entities

People

  • Frederick M. Pestorius

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Air Platforms
  • Cyber
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustics
  • Bandwidth
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programming
  • Computer Programs
  • Computers
  • Differential Equations
  • Doppler Effect
  • Frequency Bands
  • Physics Laboratories
  • Real Variables
  • Standing Waves
  • Wave Propagation
  • Waveforms

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Allergy and Immunology.
  • Structural Dynamics.