A Relaxed Splitting Preconditioner for the Incompressible Navier-Stokes Equations

Table 3

Iterations of preconditioned GMRES(30) for steady Oseen problems (Newton).

Grid	𝜐 =1		𝜐 =0.1		𝜐=0.02
	Q2-Q1	Q2-P1	Q2-Q1	Q2-P1	Q2-Q1	Q2-P1
16 × 16	27	15	29	16	46	26
32 × 32	27	12	29	14	53	24
64 × 64	23	10	26	12	46	23
128 × 128	19	11	21	10	34	18
256 × 256	16	10	10	8	15	13