TY - JOUR
T1 - Numerical Modeling and Simulation of Fully Coupled Processes of Reactive Multiphase Flow in Porous Media
AU - Ahusborde , Etienne
AU - Amaziane , Brahim
AU - El Ossmani , Mustapha
AU - Id Moulay , Mohamed
JO - Journal of Mathematical Study
VL - 4
SP - 359
EP - 377
PY - 2019
DA - 2019/12
SN - 52
DO - http://doi.org/10.4208/jms.v52n4.19.01
UR - https://global-sci.org/intro/article_detail/jms/13462.html
KW - Multiphase multicomponent flow, reactive transport, porous media, fully coupled, fully implicit, finite volume, nonlinear degenerate system, coupled PDE and ODE, permeability-porosity changes.
AB - <p style="text-align: justify;">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.</p>