Resumen de Anti-diffusion in central difference scheme at steady-state transport equation
This study shows that the central difference scheme causes anti-diffusion when applied to a steady-state one-dimensional scalar transport equation. This behaviour is opposite to the upwind scheme which adds numerical diffusion. An iterative anti-diffusion correction algorithm is developed, which eliminates anti-diffusion and reduces cell-Peclet number. This correction, in turn, eliminates or minimises numerical oscillation. This correction scheme is formulated for the inhomogenous equation and for two-dimensional problem as well.
