Accession Number : ADA306214
Title : Finite Difference Methods Applied to Biot Theory in Porous Medium.
Descriptive Note : Master's thesis,
Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Personal Author(s) : Shen, Jonah W.
PDF Url : ADA306214
Report Date : SEP 1995
Pagination or Media Count : 55
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)
Descriptors : *ACOUSTIC WAVES, *ACOUSTIC DETECTION, *FINITE DIFFERENCE THEORY, MATHEMATICAL MODELS, ALGORITHMS, PARAMETERS, TWO DIMENSIONAL, SHEAR MODULUS, PROBABILITY, MINE DETECTION, ACCURACY, THESES, MATHEMATICAL PREDICTION, WAVE PROPAGATION, APPROXIMATION(MATHEMATICS), BOUNDARY VALUE PROBLEMS, BURIED OBJECTS, NUMERICAL METHODS AND PROCEDURES, APPLIED MATHEMATICS, COMPRESSIVE STRENGTH, POROUS MATERIALS, WAVE EQUATIONS, RAYLEIGH WAVES, ELASTIC WAVES, MINE WARFARE, BULK MODULUS.
Subject Categories : Acoustic Detection and Detectors
Distribution Statement : APPROVED FOR PUBLIC RELEASE