Finite Difference Methods Applied to Biot Theory in Porous Medium.

Abstract

Finite difference methods are used to solve the Biot equations for wave propagation in a porous medium. The computational domain is a two dimensional grid of uniform spacing where truncation of the grid on all sides is accomplished by applying homogeneous Dirichlet boundary conditions. The difference method is second order in space and time, and is seen to accurately predict phase speeds of the primary compressional and shear waves. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1995
Accession Number
ADA306214

Entities

People

  • Jonah W. Shen

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustics
  • Boundaries
  • Bulk Modulus
  • Differential Equations
  • Earth Sciences
  • Equations
  • Frequency
  • Land Mines
  • Rayleigh Waves
  • Secondary Waves
  • Shear Modulus
  • Surface Properties
  • Two Dimensional
  • United States
  • United States Naval Academy
  • Wave Propagation
  • Waves

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Calculus or Mathematical Analysis
  • Combustion and Flow Dynamics.

Technology Areas

  • Space