A New Characteristic Nonconforming Mixed Finite Element Scheme for Convection-Dominated Diffusion Problem

Table 1

Numerical results of ‖𝑢−𝑢_ℎ‖_1,ℎ.

𝑚×𝑛	𝑡=0.2	𝛼	𝑡=0.3	𝛼	𝑡=0.4	𝛼
8×8	0.75277	/	0.75017	/	0.66433	/
16×16	0.42984	0.81	0.41849	0.84	0.35474	0.91
32×32	0.21758	0.99	0.21412	0.97	0.17552	1.02
𝑚×𝑛	𝑡=0.5	𝛼	𝑡=0.8	𝛼	𝑡=0.9	𝛼
8×8	0.55291	/	0.42211	/	0.40937	/
16×16	0.29234	0.92	0.23117	0.87	0.21120	0.96
32×32	0.14466	1.02	0.10807	1.10	0.09343	1.18