A Study of LaPlace's and Poisson's Equations in Three Dimensions Using Numerical Green's Functions.

Abstract

A study of LaPlace's and Poisson's equations, applied to the rectangular parallelepiped, was conducted using the CDC 6600 computer. The speed and accuracy of the numerical Green's function solutions were probed and compared with standard analytical and difference equation approaches. The Green's functions were obtained from both analytic and difference expressions. Successive overrelaxation (SOR) was used with iterative techniques. Some optimum relaxation factors for LaPlace's and Poissin's equations in rectangular parallelepiped geometry are listed for dimensions two by two by two throgh 20 by 20 by 20. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1972
Accession Number
AD0745429

Entities

People

  • Philip Francis Fry Jr

Organizations

  • Air Force Institute of Technology

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Computers
  • Difference Equations
  • Differential Equations
  • Equations
  • Geometry
  • Mathematical Analysis
  • Mathematics
  • Standards

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)