General Formulation of Second-Order Semi-Lagrangian Methods for Convection-Diffusion Problems

Figure 3

𝐸_𝑙²-errors of BDF2 using CI and CSI with 𝜈=1.25×10⁻⁴; 𝑇=𝜋/4, ℎ=Δ𝑡=0.1,0.08,0.05,0.02,0.008,0.005.