Paper:	Adaptive Implicit Non-Equilibrium Radiation Diffusion
Volume:	474, Numerical Modeling of Space Plasma Flows (ASTRONUM2012)
Page:	271
Authors:	Philip, B.; Wang, Z.; Berrill, M.; Rodriguez, M.; Pernice, M.
Abstract:	We describe methods for accurate and efficient long term time integration of non-equilibrium radiation diffusion systems: implicit time integration for efficient long term time integration of stiff multiphysics systems, local control theory based step size control to minimize the required global number of time steps while controlling accuracy, dynamic 3D adaptive mesh refinement (AMR) to minimize memory and computational costs, Jacobian Free Newton-Krylov methods on AMR grids for efficient nonlinear solution, and optimal multilevel preconditioner components that provide level independent solver convergence.

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