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Table 5 The maximum error and convergence rate for Problem 3 with \(\operatorname{Re}=10^{4}\)

From: A higher-order blended compact difference (BCD) method for solving the general 2D linear second-order partial differential equation

h FOC scheme [8] CCD2 scheme [1] BCD scheme
Error Rate Error Rate Error Rate CPU
1/8 1.50(−02)   4.17(−04)   7.80(−05)   0.94
1/16 4.89(−03) 1.62 4.38(−06) 6.57 1.01(−06) 6.27 4.03
1/32 1.74(−03) 1.49 3.84(−08) 6.84 9.11(−09) 6.79 29.42
1/64 2.81(−04) 2.63 3.28(−10) 6.87 7.78(−11) 6.87 119.64