Basic Research in Nonlinear Acoustics.

Abstract

Basic research in nonlinear acoustics was carried out during the 12-month period ending 31 Mar 1975. Work on the following three projects is summarized: (1) Propagation of finite-amplitude waves in inhomogeneous (stratified) media (including vertical propagation in the ocean and the atmosphere; dependence of B/A for sea water on pressure, salinity, and temperature; and ray theory for finite-amplitude waves). (2) Modulation of sound by sound. (3) Development of a schlierene system to visualize intense sound fields. In addition, some earlier work on the parametric array in air was revised and published.

Document Details

Document Type
Technical Report
Publication Date
Sep 04, 1975
Accession Number
ADA015296

Entities

People

  • David T. Blackstock

Organizations

  • University of Texas at Austin

Tags

DTIC Thesaurus Topics

  • Acoustics
  • Amplitude
  • Atmospheres
  • Bodies Of Water
  • Landforms
  • Modulation
  • Oceans
  • Salinity
  • Sea Water
  • Water

Fields of Study

  • Physics

Readers

  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Technical Research and Report Writing.
  • Wave Propagation and Nonlinear Chaotic Dynamics.