Finite volume approximations and strict stability for hyperbolic problems

Strictly stable finite volume formulations for long time integration of hyperbolic problems are formulated by modifying conventional and widely used finite volume schemes close to the boundary. The modification leads to difference operators that satisfy a summation-by-parts rule and the boundary conditions are imposed by a penalty procedure. Both node centered and cell centered approximations are considered. Numerical studies corroborate the superior stability of the modified formulations for long time integrations.

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