Publication Results

Code: 42/2011
Title: Numerical performance of discontinuous and stabilized continuous Galerkin methods or convection-diffusion problems
Date: Sunday 27th November 2011
Author(s) : Antonietti, P.f.; Quarteroni, A.
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Abstract: We compare the performance of two classes of numerical methods for the approximation of linear steady-state convection-diffusion equations, namely, the discontinuous Galerkin (DG) method and the continuous streamline upwind Petrov-Galerkin (SUPG) method. We present a fair comparison of such schemes considering both diffusion--dominated and convection-dominated regimes, and present numerical results obtained on a series of test problems including smooth solutions, and test cases with sharp internal and boundary layers.