A Time-Split MacCormack Scheme for Two-Dimensional Nonlinear Reaction-Diffusion Equations

Abstract

A three-level explicit time-split MacCormack scheme is proposed for solving the two-dimensional nonlinear reaction-diffusion equations. The computational cost is reduced thank to the splitting and the explicit MacCormack scheme. Under the well known condition of Courant-Friedrich-Lewy (CFL) for stability of explicit numerical schemes applied to linear parabolic partial differential equations, we prove the stability and convergence of the method in $L^{\infty }(0,T;L^2)$-norm. A wide set of numerical evidences which provide the convergence rate of the new algorithm are presented and critically discussed.

25 pages; 12 figures; 6 tables