Stability of the P to S Energy Ratio in the Diffusive Regime,

Abstract

In the presence of inhomogeneities the propagation of elastic wave energy can be modeled by radiative transport equations. This is a good approximation when typical wavelengths are short compared to the overall propagation distance, correlation lengths are comparable to wavelengths so that the inhomogeneities have appreciable effect and the fluctuations are weak. The relevant transport equations are derived in starting from the elastic wave equations in an unbounded medium.

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Document Details

Document Type
Technical Report
Publication Date
Aug 14, 1995
Accession Number
ADP204529

Entities

People

  • George C. Papanicolaou
  • Joseph B. Keller
  • Leonid V. Ryzhik

Organizations

  • Stanford University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Boltzmann Equation
  • Elastic Waves
  • Energy
  • Energy Conversion
  • Energy Transfer
  • Equations
  • Frequency
  • Mean Free Path
  • Power Spectra
  • Scattering
  • Scattering Cross Sections
  • Secondary Waves
  • Surface Waves
  • Wave Equations
  • Wave Power
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Plasma Physics / Magnetohydrodynamics