Table 3: The corresponding convergence rates of fm. 1 and fm. 2.

Case Mesh
fm. fm. fm. fm. fm. fm. fm. fm.

1 1.4591.4680.9971.0010.9950.9931.8751.795
1.4681.4760.998 0.9950.9990.9991.9611.934
1.4791.4841.000 0.9981.0001.000 1.9871.978
1.4861.4891.0001.0001.0001.0001.9961.993

1.4491.4570.9680.9780.9990.9961.817 1.742
1.4621.4710.9830.9841.0011.001 1.9301.901
1.471 1.4790.9930.9931.0011.000 1.9761.960
1.4801.485 0.9970.997 1.0001.0001.9891.984

1.3471.3400.9420.9240.9980.9971.7871.708
1.4161.4140.9570.9450.9990.999 1.906 1.870
1.4521.4520.9790.9731.0001.000 1.9591.942
1.4721.4730.990 0.9861.0001.000 1.9831.975