Details of the Derivation of the Acoustic Surface Loss Formula

Abstract

The purpose of this document is to provide a detailed and self-contained derivation of the high frequency component SL1 of the acoustic surface loss formula for a rough interface of impedance mismatch. We thoroughly examine the existing derivations of SL1, point at their flaws and suggest the corrected form. Much of the report is a technical review in which we critically revisit the fundamentals behind the surface loss formula and cover such aspects as the basics of the Kirchhoff theory, random surfaces and wave scattering from them, large roughness approximation of the diffuse field, and energy flux calculations.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2011
Accession Number
ADA538149

Entities

People

  • Sergey Simakov

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Angle Of Incidence
  • Australia
  • Autocorrelation
  • Cartesian Coordinates
  • Data Science
  • Frequency
  • Grazing
  • Grazing Angles
  • Information Science
  • Notation
  • Plane Waves
  • Power Spectra
  • Probability
  • Radiation
  • Scattering
  • Two Dimensional
  • Waves

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Systems Analysis and Design