Problems in Nonlinear Acoustics: Rayleigh Waves, Pulsed Sound Beams, Reflection of Focused Beams, Waveguides, Cooperative Radiation of Sound by Bubbles, Acoustic Streaming Effects in Standing Waves, and Spark-Source Lithotripter Pulses

Abstract

Nine projects are discussed in this annual summary report, all of which involve basic research in physical acoustics, mainly nonlinear acoustics: (1) Nonlinear Rayleigh Waves, (2) Finite Amplitude Pulses in Liquids with Strong Absorption, (3) Reflection of a Focused Beam from a Curved Target, (4) Finite Amplitude Propagation in a Sound Velocity Channel, (5) Second Harmonic Generation in Pekeris Waveguides, (6) Finite Amplitude Propagation in Multiple Waveguide Modes, (7) Cooperative Radiation and Scattering of Sound by Bubbles, (8) Water Fountains Produced by Intense Standing Waves in Air, and (9) SparkSource Lithotripter Pulses. nonlinear acoustics, waveguides, pulsed beams, layered media, focused beams, surface waves.

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Document Details

Document Type
Technical Report
Publication Date
Aug 14, 1992
Accession Number
ADA256289

Entities

People

  • Mark F. Hamilton

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Acoustics
  • Classification
  • Computer Programs
  • Continuous Spectra
  • Distortion
  • Doppler Effect
  • Electrical Engineering
  • Geometry
  • Mechanical Engineering
  • Rayleigh Waves
  • Scattering
  • Standing Waves
  • Students
  • Wave Equations
  • Wave Propagation
  • Waveguides

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy