2.8 Steady-state condition

Both the Taylor-Galerkin and characteristic-Galerkin methods give an answer which compares directly with SUPG and GLS giving additional streamline diffusion (higher-order derivatives are omitted) and sources

with ? t replacing the coefficient ? h. With the characteristic-Galerkin method being the only method that has a full mathematical justification, we feel that even for steady-state problems this should be considered as an appropriate solution technique.