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

Table 2

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

𝑚	𝑡=0.5			𝑡=1
	Computational cost	𝛾	Reduction	Computational cost	𝛾	Reduction
1	0.1710	0.0535		0.3270	0.1342
2	0.5920	0.0254	2.11	1.1680	0.0641	2.10
4	2.3840	0.0124	2.05	4.6590	0.0313	2.05
8	9.8810	0.0061	2.03	19.7440	0.0154	2.03