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 language||English (US)|
|Number of pages||20|
|Journal||International Journal of Computational Fluid Dynamics|
|State||Published - Feb 2002|
Bibliographical noteFunding Information:
This research has been funded by the Natural Sciences and Engineering Research Council of Canada (NSERC), PSIR research program of ETS and by Bombardier. Yousef Saad acknowledges support from the Army Research Office and the Minnesota Supercomputing Institute.
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