An Alternative HSS Preconditioner for the Unsteady Incompressible Navier-Stokes Equations in Rotation Form

Table 2

Results for 2D unsteady Oseen problem different values of 𝛼 (exact solves) and 𝜈=0.05.

Grid	𝛼=10	𝛼=20	𝛼=50	𝛼=100
8×8	4	4	3	3
16×16	6	5	3	3
32×32	8	6	4	3
64×64	9	7	5	5
128×128	10	7	5	5