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An Adaptive Multi-level method for Convection DiffusionProblems

Published online by Cambridge University Press:  15 April 2002

Martine Marion  and
Adeline Mollard
Martine Marion
Affiliation:
UMR CNRS 5585, Département Mathématique-Informatique, École Centrale de Lyon, BP 163, 69131 Écully Cedex, France.
Adeline Mollard
Affiliation:
UMR CNRS 5640, Département Génie Mathématique, INSA, Complexe de Rangueil, 31077 Toulouse Cedex 4, France.
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Abstract

In this article we introduce an adaptive multi-levelmethod in space and time for convection diffusion problems. The scheme is based on a multi-level spatial splitting and the use of differenttime-steps. The temporal discretization relies on the characteristics method. We derive an a posteriori error estimate and design a correspondingadaptive algorithm. The efficiency of the multi-level method is illustrated by numerical experiments,in particular for a convection-dominated problem.

Keywords

Multi-level methodsconvection-diffusion equationscharacteristics methoda posteriori error estimatesadaptive algorithms.
Type
Research Article
Information
ESAIM: Mathematical Modelling and Numerical Analysis , Volume 34 , Issue 2: Special issue for R. Teman's 60th birthday , March 2000 , pp. 439 - 458
Copyright
© EDP Sciences, SMAI, 2000

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