Nonlinear Acoustics: Periodic Waveguide, Scattering of Sound by Sound, Three-Layer Fluid, Finite Amplitude Sound in a Medium Having a Distribution of Relaxation Processes, and Production of an Isolated Negative Pulse in Water

Abstract

Research on nonlinear acoustics has been carded out during the 12- month period ending 30 September 1992. Progress is reported on the following projects: (1) Propagation in a periodic waveguide; (2) Scattering of sound by sound; (3) Finite-amplitude waves in a three-layer fluid; (4) Finite-amplitude waves in a medium having a distribution of relaxation processes; and, (5) Propagation of an isolated negative-pressure pulse in water.... Nonlinear acoustics, Dispersion, Relaxing media, Bloch waves, Scattering of sound by sound, Generalized Burgers equation, Periodic waveguide, Reflection, Unipolar negative pulse

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Document Details

Document Type
Technical Report
Publication Date
Jun 03, 1993
Accession Number
ADA267145

Entities

People

  • David T. Blackstock

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

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

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Waves
  • Acoustics
  • Diffraction
  • Dispersions
  • Equations
  • Group Velocity
  • Materials
  • Materials Science
  • Military Research
  • Physics
  • Physics Laboratories
  • Reflection
  • Scattering
  • Standing Waves
  • Wave Propagation
  • Waveguides

Fields of Study

  • Engineering
  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.