Journal
NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS
Volume 36, Issue 1, Pages 66-85Publisher
WILEY
DOI: 10.1002/num.22400
Keywords
block-centered finite difference; Darcy-Forchheimer incompressible miscible displacement; full mass conservation; non-uniform grids; numerical experiments
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In this paper, a block-centered finite difference method is derived for the Darcy-Forchheimer incompressible miscible displacement problem in porous media by introducing an auxiliary flux variable to guarantee full mass conservation. Error estimates for the pressure, velocity, concentration, and auxiliary flux in different discrete norms are established rigorously and carefully on nonuniform grids. Finally, some numerical experiments are presented to show that the convergence rates are in agreement with the theoretical analysis.
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