Numerical solution of a 2-D conduction-convection-radiation model problem in divertor geometry using adaptive finite elements

Some of the essential features of plasma transport in the tokamak edge with realistic divertor geometry are simulated using adaptive finite elements t o solve a time-dependent scalar anisotropic conduction-convection-radiation problem. Solutions are compared with those obtained on fixed finite elemen t mesh and typically show comparable accuracy at a much lower cost or much better accuracy at comparable cost.