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

Table 1

Results get from the penalty method with 𝜀=1.0𝑒−5.

1/ℎ	CPU-time	𝜆ℎ	|𝜆ℎ−𝜆|/𝜆	Rate
8	0.016	60.2628	0.151269	—
16	0.094	54.1688	0.0348472	2.1180
24	0.234	53.1426	0.015243	2.0393
32	0.437	52.7909	0.00852367	2.0205
40	0.751	52.6295	0.00544061	2.0120
48	1.156	52.5433	0.00377371	2.0065
56	1.734	52.4898	0.00277154	2.0023
64	2.437	52.4558	0.00212237	1.9986