Steady-State Wave Propagation in Simple and Compound Acoustic Waveguides.

Abstract

A limiting absorption principle and corresponding existence theorem is presented for steady-state acoustic wave fields in simple and compound waveguides. The simple guides are semi-infinite cylinders, sectoral horns and conical horns. The compound guides are structures built by coupling one or more simple guides to a bounded cavity. The theory is developed under minimal regularity hypotheses about the waveguide walls. The class of allowable guides includes all the simple, but non-smooth, structures that arise in applications such as guides built from polyhedra and sections of cylinders, cones, spheres and other simple geometrical structures. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1977
Accession Number
ADA041046

Entities

People

  • Calvin H. Wilcox
  • J. C. Guillot

Organizations

  • University of Utah

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Absorption
  • Acoustic Waveguides
  • Acoustic Waves
  • Coordinate Systems
  • Eigenvalues
  • Equations
  • Frequency
  • Hilbert Space
  • Mathematics
  • Military Research
  • Radiation
  • Spectra
  • Steady State
  • Theorems
  • Wave Propagation
  • Waveguides
  • Waves

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)