Aspectos computacionales del método local discontinuous Galerkin para mallas no conformes en 2D

Abstract

This article describes an implementation of the Local Discontinuous Galerkin (LDG) method applied to a general elliptic boundary value problem in 2D. The implementation takes advantage of some intrinsic properties of the method, in particular, the use of non conforming meshes with an arbitrary but fixed number of hanging nodes and polynomial approximations with variable degree. A detailed description of efficient data structures yielding a fast assembly of the linear system in its mixed formulation is presented. This implementation can be used as a model for hp adaptive codes.

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