Numerical Solution of Quasi-Conservative Hyperbolic Systems - The Cylindrical Shock Problem,

Abstract

The paper discusses the numerical solution of hyperbolic systems of partial differential equations which are in quasi-conservation form. A basic Lax-Wendroff like scheme is developed. In order to treat problems with discontinuous solutions an iterative procedure is proposed. The stability and convergence of the various schemes are investigated. It is shown that it is possible to have time steps considerably larger than those allowed according to the C.F.L. (Courant - Friedricks - Levy) criterion. The method is then applied to the case of converging-diverging cylindrical shock waves. Detailed behavior near the axis at the time of shock coalescence is obtained, as well as the general flow field at various times. The results are compared with Payne and the differences are pointed out. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 26, 1971
Accession Number
AD0717956

Entities

People

  • M. Goldberg
  • S. Abarbanel

Organizations

  • Tel Aviv University

Tags

DTIC Thesaurus Topics

  • Coalescence
  • Convergence
  • Differential Equations
  • Equations
  • Flow
  • Flow Fields
  • Mathematics
  • Partial Differential Equations
  • Shock
  • Shock Waves
  • Waves

Fields of Study

  • Mathematics

Readers

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