Numerical Study on Several Stabilized Finite Element Methods for the Steady Incompressible Flow Problem with Damping

Table 5

Results got from the local Gauss integration method with the nonconforming element with 𝜈=1.0𝑒−4, 𝛼=1.0𝑒−4, and 𝑟=3.

1/ℎ	CPU-time	‖𝑢−𝑢ℎ‖1/‖𝑢‖1	‖𝑝−𝑝ℎ‖0/‖𝑝‖0	𝑢𝐻^1-rate	𝑝𝐿2-rate
12	0.297	3.6007	5.8335𝐸−2	—	—
24	2.500	1.8851	1.6524𝐸−2	0.9336	1.8198
36	5.735	1.2682	7.5810𝐸−3	0.9776	1.9217
48	11.469	0.9543	4.3219𝐸−3	0.9887	1.9534
60	21.719	0.7646	2.7858𝐸−3	0.9932	1.9681