Time-space adaptive discontinuous Galerkin method for advection-diffusion equations with non-linear reaction mechanism

摘要

In thiswork,we apply a time-space adaptive discontinuous Galerkin method using the elliptic reconstruction technique with a robust (in Péclet number) elliptic error estimator in space, for the convection dominated parabolic problems with non-linear reactionmechanisms.We derive a posteriori error estimators in the L~∞(L~2)+L~2(H~1)- type norm using backward Euler in time and discontinuous Galerkin (symmetric interior penalty Galerkin) in space. Numerical results for advection dominated reactive transport problems in homogeneous and heterogeneous media demonstrate the performance of the time-space adaptive algorithm.