A new perspective on flux and slope limiting in discontinuous Galerkin methods for hyperbolic conservation laws
Dmitri Kuzmin
Abstract:In this work, we discuss and develop multidimensional limiting techniques for discontinuous Galerkin (DG) discretizations of scalar hyperbolic problems. To ensure that each cell average satisfies a local discrete maximum principle (DMP), we impose inequality constraints on the local Lax-Friedrichs fluxes of a piecewise-linear (P 1 ) approximation. Since the piecewise-constant (P 0 ) version corresponds to a property-preserving low-order finite volume method, the validity of DMP conditions can always be enforce… Show more
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