Krylov Methods for Compressible Flows.

Abstract

In this paper we investigate the application of Krylov methods to compressible flows, and the effect of implicit boundary conditions on the implicit solution of nonlinear problems. Two defect-correction procedures, namely, Approximate Factorization (AF) for structured grids, and ILU/GMRES for general grids are considered. Also, considered here is Newton-Krylov matrix-free methods that we combined with the use of mixed discretization schemes in the implicitly defined Jacobian and its preconditioner. Numerical experiments that show the performance of our approaches are then presented. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1995
Accession Number
ADA298971

Entities

People

  • M. D. Tidriri

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acceptance Tests
  • Applied Mechanics
  • Boundaries
  • Compressible Flow
  • Computational Complexity
  • Computational Fluid Dynamics
  • Computational Science
  • Computers
  • Convergence
  • Eigenvalues
  • Engineering
  • Equations
  • Euler Equations
  • Flow
  • Grids
  • Linear Systems
  • Steady State

Fields of Study

  • Mathematics

Readers

  • Computational Fluid Dynamics (CFD)
  • Linear Algebra