Performance of certain iterative methods in solving implicit difference schemes for 2-D Navier–Stokes equations

✍ Scribed by O. P. Iliev; M. M. Makarov; P. S. Vassilevski

• Publisher: John Wiley and Sons
• Year: 1992
• Tongue: English
• Weight: 995 KB
• Volume: 33
• Category: Article
• ISSN: 0029-5981
• DOI: 10.1002/nme.1620330707

✦ Synopsis

The performance of three iterative methods, local SOR, preconditioned generalized conjugate gradient methods such as ORTHOMIN( 1) and the GCG-LS method with preconditioning matrices derived by incomplete (modified and unmodified) pointwise factorizations of the matrix corresponding to implicit finite difference schemes for the 2-D Navier-Stokes equations, is compared. The relative merits of these methods in terms of CPU time, average number of iterations with respect to the Reynolds number and discretization parameters are emphasized.