212 RWTH Publication No: 47158        2002        IGPM212.pdf
TITLE Preconditioning GMRES for Steady Compressible Inviscid Flows
AUTHORS Philipp Birken
ABSTRACT Most of the computing time in an implicit finite volume method is spent solving the linear equation systems. The performance of the Newton-Krylov solver depends on the preconditioner. Choosing the appropriate preconditioner is crucial for the overall performance of the solver. It is demonstrated through numerical experiments, that an incomplete LU decomposition with higher level of fill gives good efficiency for the considered aerodynamic problems.