Discontinuous Galerkin for Hyperbolic Systems with Stiff Relaxation
Robert B. Lowrie, Jim E. Morel · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1999
A Discontinuous Galerkin method is applied to hyperbolic systems that contain stiff relaxation terms. We demonstrate that when the relaxation time is unresolved, the method is accurate in the sense that it accurately represents the system's Chapman-Enskog approximation. Results are presented for the hyperbolic heat equation and coupled radiation-hydrodynamics.