Table 2 Both group velocities and errors of Pi for WENO5-JS and RK4
From: Quasi-linear analysis of dispersion relation preservation for nonlinear schemes
Point | Vg, num | Vg, anal | |Vg, anal − Vg, num|/Vg, num |
|---|---|---|---|
P1 | 0.8647 | 0.8627 | 0.23% |
P2 | 0.8638 | 0.8698 | 0.69% |
P3 | 0.8732 | 0.8524 | 2.38% |
P4 | 0.8203 | 0.6505 | 20.70% |