Numerical Modeling and Simulation of Fully Coupled Processes of Reactive Multiphase Flow in Porous Media
Year: 2019
Author: Etienne Ahusborde, Brahim Amaziane, Mustapha El Ossmani, Mohamed Id Moulay
Journal of Mathematical Study, Vol. 52 (2019), Iss. 4 : pp. 359–377
Abstract
In this paper, we consider a finite volume approach for modelling multiphase flow coupled to geochemistry in porous media. Reactive multiphase flows are modelled by a highly nonlinear system of degenerate partial differential equations coupled with algebraic and ordinary differential equations. We propose a fully implicit scheme using a direct substitution approach (DSA) implemented in the framework of the parallel open-source platform DuMuX. We focus on the particular case where porosity changes due to mineral dissolution/precipitation are taken into account. This alteration of the porosity can have significant effects on the permeability and the tortuosity. The accuracy and effectiveness of the implementation of permeability/porosity and tortuosity/porosity relationships related to mineral dissolution/precipitation for single-phase and two-phase flows are demonstrated through numerical simulations.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/jms.v52n4.19.01
Journal of Mathematical Study, Vol. 52 (2019), Iss. 4 : pp. 359–377
Published online: 2019-01
AMS Subject Headings:
Copyright: COPYRIGHT: © Global Science Press
Pages: 19
Keywords: Multiphase multicomponent flow reactive transport porous media fully coupled fully implicit finite volume nonlinear degenerate system coupled PDE and ODE permeability-porosity changes.