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

Table 3

Numerical results of ‖𝜎−𝜎_ℎ‖.

𝑚×𝑛	𝑡=0.1	𝛼	𝑡=0.4	𝛼	𝑡=0.5	𝛼
8×8	4.9528𝑒−005	/	4.2661𝑒−005	/	3.8292𝑒−005	/
16×16	2.3945𝑒−005	1.05	1.8843𝑒−005	1.18	1.6806𝑒−005	1.19
32×32	1.1749𝑒−005	1.03	9.0029𝑒−006	1.07	8.0521𝑒−006	1.06
𝑚×𝑛	𝑡=0.7	𝛼	𝑡=0.8	𝛼	𝑡=0.9	𝛼
8×8	3.0714𝑒−005	/	2.7735𝑒−005	/	2.524𝑒−005	/
16×16	1.3326𝑒−005	1.20	1.224𝑒−005	1.18	1.1443𝑒−005	1.14
32×32	6.455𝑒−006	1.05	5.8353𝑒−006	1.07	5.3751𝑒−006	1.09