Enhanced GMRES acceleration techniques for some CFD problems

Azzeddine Souläimani, Nizar Ben Salah, Yousef Saad

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Large linear systems arising in CFD problems are often solved using iterative methods which typically combine an accelerator such as GMRES and a preconditioner. This paper presents results using several preconditioning techniques, which are not standard in CFD. Numerical tests are carried out for solving three-dimensional incompressible, compressible and magnetohydrodynamic (MHD) problems. A selection of numerical results is presented showing in particular that the flexible GMRES algorithm preconditioned with ILUT factorization provides a fairly robust iterative solver.

Original languageEnglish (US)
Pages (from-to)1-20
Number of pages20
JournalInternational Journal of Computational Fluid Dynamics
Volume16
Issue number1
DOIs
StatePublished - Feb 1 2002

Keywords

  • Broyden
  • Deflation
  • FGMRES
  • GMRES
  • Incompressible
  • Stablization

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