A Finite Difference Scheme for Compressible Miscible Displacement Flow in Porous Media on Grids with Local Refinement in Time

Table 1

Error estimate in maximum norm when 𝐷(𝑥)=1.

𝑚	𝑡=0.5			𝑡=1
	Computational cost	𝛾	Reduction	Computational cost	𝛾	Reduction
1	0.1560	0.0159		0.3130	0.0356
2	0.5780	0.0062	2.56	1.1560	0.0137	2.60
4	2.3440	0.0026	2.38	4.6080	0.0058	2.36
8	9.2810	0.0012	2.17	18.6800	0.0026	2.23