We develop an a priori error analysis of a finite element approximation to the elliptic advection-diffusion equation -ε△u + a · ▽u = f subject to a homogeneous Dirichlet boundary condition, based on the use of residual-free bubble functions. An optimal order error bound is derived in the so-called stability-norm (ε||▽v||2L2(Ω) + ∑ThT||a · ▽v||2L2(T))1/2, where hT denotes the diameter of element T in the subdivision of the computational domain.

Brezzi, F., Hughes, T., Marini, L., Russo, A., Suli, E. (1999). A priori error analysis of residual-free bubbles for advection-diffusion problems. SIAM JOURNAL ON NUMERICAL ANALYSIS, 36(6), 1933-1948 [10.1137/S0036142998342367].

A priori error analysis of residual-free bubbles for advection-diffusion problems

RUSSO, ALESSANDRO;
1999

Abstract

We develop an a priori error analysis of a finite element approximation to the elliptic advection-diffusion equation -ε△u + a · ▽u = f subject to a homogeneous Dirichlet boundary condition, based on the use of residual-free bubble functions. An optimal order error bound is derived in the so-called stability-norm (ε||▽v||2L2(Ω) + ∑ThT||a · ▽v||2L2(T))1/2, where hT denotes the diameter of element T in the subdivision of the computational domain.
Articolo in rivista - Articolo scientifico
Advection-diffusion problems; residual-free bubbles; stabilization; error analysis; Galerkin method; streamline-upwind Petrov-Galerkin method; stability; streamline diffusion method
English
1999
36
6
1933
1948
none
Brezzi, F., Hughes, T., Marini, L., Russo, A., Suli, E. (1999). A priori error analysis of residual-free bubbles for advection-diffusion problems. SIAM JOURNAL ON NUMERICAL ANALYSIS, 36(6), 1933-1948 [10.1137/S0036142998342367].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/18425
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