Characteristics Weak Galerkin Finite Element Methods for Convection-Dominated Diffusion Problems

Table 2

Error behavior of Example 1 with the setting (ii) of 𝐵 and Δ𝑡/ℎ=0.5.

Δ𝑡	ℎ	‖𝑒0‖	Order≈	‖∇𝑑𝑒‖	Order≈
2^−4	2^−3	4.833e − 2	—	2.808e − 1	—
2^−5	2^−4	2.761e − 2	0.807	1.515e − 1	0.890
2^−6	2^−5	1.477e − 2	0.902	7.901e − 2	0.939
2^−7	2^−6	7.665e − 3	0.946	4.050e − 2	0.964
2^−8	2^−7	3.916e − 3	0.968	2.060e − 2	0.975