A Computer Program for Solving the Parabolic Equation Using an Implicit Finite-Difference Solution Method and Incorporating Exact Interface Conditions

Abstract

An Implicit Finite-Difference (IFD) computer program that incorporates exact interface conditions has been developed for solving the parabolic equation. The model preserves continuity of pressure and continuity of the normal component of particle velocity at the interface between media having different sound speeds and densities. Interface conditions are preserved for horizontal and sloping interfaces along a user-specified bottom profile. Test cases are included to demonstrate the use of the model.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1983
Accession Number
ADA135325

Entities

People

  • L. E. Jaeger

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Waves
  • Acoustics
  • California
  • Computer Programs
  • Computers
  • Continuity
  • Deep Water
  • Discontinuities
  • Equations
  • Fast Fourier Transforms
  • Frequency
  • Particles
  • Refractive Index
  • Shallow Water
  • Underwater Acoustics
  • Wave Equations

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)