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hp ‐Discontinuous Galerkin finite element methods for hyperbolic problems: error analysis and adaptivity
Author(s) -
Houston Paul,
Senior Bill,
Süli Endre
Publication year - 2002
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.271
Subject(s) - a priori and a posteriori , discontinuous galerkin method , finite element method , mathematics , galerkin method , duality (order theory) , convergence (economics) , function (biology) , rate of convergence , domain (mathematical analysis) , error analysis , exponential function , mathematical optimization , mathematical analysis , computer science , discrete mathematics , computer network , philosophy , channel (broadcasting) , physics , epistemology , evolutionary biology , biology , economics , thermodynamics , economic growth
In this paper we develop the a posteriori error analysis of the hp ‐version of the discontinuous Galerkin finite element method for linear and non‐linear hyperbolic problems. By employing a duality argument, sharp a posteriori error bounds are derived for certain output functionals of practical interest. These bounds exhibit an exponential rate of convergence under hp ‐refinement if either the primal or the dual solution is an analytic function over the computational domain. Based on our a posteriori error bounds, we design and implement the corresponding hp ‐adaptive finite element algorithm to ensure the reliable and efficient control on the error in the prescribed functional to within a user‐defined tolerance. Copyright © 2002 John Wiley & Sons, Ltd.