An hr-adaptive discontinuous Galerkin method for advection-diffusion problems
Antonietti, Paola F. and Houston, Paul (2009) An hr-adaptive discontinuous Galerkin method for advection-diffusion problems. Communications to SIMAI Congress, 3 . ISSN 1827-9015 (Submitted)
Official URL: http://cab.unime.it/journals/index.php/congress/index
We propose an adaptive mesh refinement strategy based on exploiting a combination of a pre-processing mesh re-distribution algorithm employing a harmonic mapping technique, and standard (isotropic) mesh subdivision for discontinuous Galerkin approximations of advection-diffusion problems. Numerical experiments indicate that the resulting adaptive strategy can efficiently reduce the computed discretization error by clustering the nodes in the computational mesh where the analytical solution undergoes rapid variation.
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