A Least Squares Finite Element Approach to Unsteady Gas Dynamics.

Abstract

A new numerical technique for solving unsteady gas dynamic equations is presented. The technique is based on least squares finite element concepts with elements that are constructed in both space and time. Both linear and quadratic interpolation is used on individual elements. The technique is tested against a problem whose exact solution is known so that numerical accuracy can be ascertained.

Document Details

Document Type
Technical Report
Publication Date
May 01, 1976
Accession Number
ADA026531

Entities

People

  • John F. Polk

Organizations

  • Ballistic Research Laboratory

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Dynamics
  • Equations
  • Fluid Dynamics
  • Fluid Mechanics
  • Gas Dynamics
  • Interpolation
  • Mathematics
  • Physics

Fields of Study

  • Mathematics

Readers

  • Calculus or Mathematical Analysis
  • Computational Fluid Dynamics (CFD)

Technology Areas

  • Space