A stabilized finite-element method for the Stokes problem including element and edge residuals |
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Authors: | Araya Rodolfo; Barrenechea Gabriel R; Valentin Frederic |
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Institution: |
1 Departamento de Ingeniería Matemática, Universidad de Concepción, Casilla 160-C, Concepción, Chile, 2 Departamento de Matemática Aplicada, Laboratório Nacional de Computação Científica Av. Getúlio Vargas, 333, 25651-070 PetrópolisRJ, Brazil
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Abstract: | ** Email: raraya{at}ing-mat.udec.cl*** Corresponding author. Email: gbarrene{at}ing-mat.udec.cl**** Email: valentin{at}lncc.br
A new stabilized finite-element method is presented for theStokes problem. The method is of a DouglasWang type,and includes a positive jump term controlling the residual ofthe Cauchy stress tensor on the internal edges of the triangulation.A priori error estimates are obtained in the natural norms ofthe unknowns and an a posteriori error estimator is proposed,analysed and tested through numerical experiments. |
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Keywords: | Stokes equation stabilized method a posteriori analysis jump term |
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