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Rapport (Rapport De Recherche) Année : 2001

An Unusual Stabilized Finite Element Method for a Generalized Stokes Problem

Résumé

An unusual stabilized finite element is presented and analyzed herein for a generalized Stokes problem with a dominating zeroth order term. The method consists in subtracting a mesh dependent term from the formulation without compromising consistency. The design of this mesh dependent term, as well as the stabilization parameter involved, are suggested by bubble condensation. Stability is proven for any combination of velocity and pressure spaces, under the hypotheses of continuity for the pressure space. Optimal order error estimates are derived for the velocity and the pressure, using the standard norms for these unknowns. Numerical experiments confirming these theoretical results, and comparisons with previous methods are presented.

Domaines

Autre [cs.OH]
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Dates et versions

inria-00072449 , version 1 (24-05-2006)

Identifiants

  • HAL Id : inria-00072449 , version 1

Citer

Gabriel Raúl Barrenechea, Frédéric Valentin. An Unusual Stabilized Finite Element Method for a Generalized Stokes Problem. [Research Report] RR-4173, INRIA. 2001. ⟨inria-00072449⟩
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