Numerical Investigations on Several Stabilized Finite Element Methods for the Stokes Eigenvalue Problem

Table 4

Results get from the local Gauss integration method.

1/ℎ	CPU-time	𝜆ℎ	|𝜆ℎ−𝜆|/𝜆	Rate
8	0.031	57.3951	0.096482	—
16	0.109	53.6201	0.024366	1.9854
24	0.251	52.9119	0.0108368	1.9983
32	0.469	52.6638	0.00609553	2.0001
40	0.797	52.5489	0.00390065	2.0006
48	1.234	52.4865	0.00270843	2.0007
56	1.844	52.4488	0.00198963	2.0008
64	2.547	52.4244	0.00152315	2.0008