Table 1: L 2 and H 1 relative errors and absolute errors of numerical velocity uh.


0.125 0.01575 0.011110.098390.61764
0.0625 0.00430.00304 0.060390.37914
0.03125 9.0178E-4 6.37147E-40.026020.16338
0.025 5.03846E-4 3.55991E-4 0.018060.11338
0.02083 3.03229E-4 2.14246E-4 0.012810.08044
0.017861.95654E-41.38239E-4 0.009260.05814
0.015631.37093E-4 9.68631E-50.006810.04275
0.013891.06511E-4 7.52554E-5 0.005090.03198