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

Table 3

Error behavior of Example 2 for Δ𝑡/ℎ=0.5.

Δ𝑡	ℎ	‖𝑒0‖	Order≈	‖∇𝑑𝑒‖	Order≈
2^−5	2^−4	3.941e − 2	—	7.965e − 1	—
2^−6	2^−5	1.942e − 2	1.021	3.352e − 1	1.248
2^−7	2^−6	9.733e − 3	0.996	1.562e − 1	1.102
2^−8	2^−7	4.934e − 3	0.980	7.668e − 2	1.025
2^−9	2^−8	2.502e − 3	0.980	3.773e − 2	1.023