Conservation Schemes For Convection-Diffusion Equations With Robin Boundary Conditions

Stéphane Flotron, Jacques Rappaz
EDP Sciences, 2013
Journal paper

Abstract

In this article, we present a numerical scheme based on a finite element method in order to solve a time-dependent convection-diffusion equation problem and satisfy some conservation properties. In particular, our scheme is able to conserve the total energy for a heat equation or the total mass of a solute in a fluid for a concentration equation, even if the approximation of the velocity field is not completely divergence-free. We establish a priori errror estimates for this scheme and we give some numerical examples which show the efficiency of the method.

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