We propose and analyze a semi lagrangian method for the convection-diffusion equation. Error estimates for both semi and fully discrete finite element approximations are obtained for convection dominated flows. The estimates are posed in terms of the projections constructed in [Chrysafinos and Walkington, SIAM J. Numer. Anal. 43 (2006) 2478-2499; Chrysafinos and Walkington, SIAM J. Numer. Anal. 44 (2006) 349-366] and the dependence of various constants upon the diffusion parameter is characterized. Error estimates independent of the diffusion constant are obtained when the velocity field is computed exactly.
@article{M2AN_2008__42_1_25_0,
author = {Chrysafinos, Konstantinos and Walkington, Noel J.},
title = {Lagrangian and moving mesh methods for the convection diffusion equation},
journal = {ESAIM: Mathematical Modelling and Numerical Analysis - Mod\'elisation Math\'ematique et Analyse Num\'erique},
volume = {42},
year = {2008},
pages = {25-55},
doi = {10.1051/m2an:2007053},
mrnumber = {2387421},
zbl = {1136.65089},
language = {en},
url = {http://dml.mathdoc.fr/item/M2AN_2008__42_1_25_0}
}
Chrysafinos, Konstantinos; Walkington, Noel J. Lagrangian and moving mesh methods for the convection diffusion equation. ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique, Tome 42 (2008) pp. 25-55. doi : 10.1051/m2an:2007053. http://gdmltest.u-ga.fr/item/M2AN_2008__42_1_25_0/
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