High-Order Compact Difference Scheme and Multigrid Method for Solving the 2D Elliptic Problems

Table 8

Maximum absolute error and convergence rate of the FOC scheme for different Re for Problem 2.

Re	Error(=1/64)	Error(=1/128)	Rate	Error(=1/256)	Rate
	4.42(-4)	2.80(-5)	3.98	1.75(-6)	4.00
	4.07(-3)	2.74(-4)	3.89	1.76(-5)	3.96
	1.24(-2)	2.23(-3)	2.48	1.64(-4)	3.77
	1.12(-2)	3.49(-3)	1.68	9.41(-4)	1.89