Adaptive Choice of Parameters in Stabilization Meth o ds for Convection-Diffusion Equations

• ID: 2743, RIV: 10314778
• ISSN: neuvedeno, ISBN: 978-80-7378-224-5
• zdroj: WDS'12 Proceedings of Contributed Papers, Part I,
• klíčová slova: SUPG; SDFEM; adaptive; adaptive methods; adjoint approach; stabilized methods; gradient methods;
• autoři: Petr Lukáš
• autoři z KNM: Lukáš Petr

Abstrakt

This paper is devoted to the numerical solution of the scalar convection- diffusion equation. We present new results of the adaptive technique in finite element method based on minimizing a functional called error indicator. Particularly, we use more different spaces (space of piecewise constant functions, piecewise linear continuous functions, and piecewise linear discontinuous functions) for the parameter tau from the SUPG (SDFEM) method.