A benchmark study on reactive two-phase flow in porous media
Part I - model description
Stephan de Hoop (TU Delft - Civil Engineering & Geosciences)
Denis Voskov (TU Delft - Civil Engineering & Geosciences, Stanford University)
Etienne Ahusborde (Université de Pau et des Pays de l'Adour)
Brahim Amaziane (Université de Pau et des Pays de l'Adour)
Michel Kern (Institut National de Recherche en Informatique et en Automatique (INRIA), ENPC)
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Abstract
This paper proposes a benchmark study for reactive multiphase multicomponent flow in porous media. Modeling such problem leads to a highly nonlinear coupled system of partial differential equations, ordinary differential equations and algebraic constraints, which requires special numerical treatment. The benchmark consists of five test problems in total (both in 1D and in 2D), with varying degrees of difficulty, designed to verify the algorithms and the codes dedicated to simulating coupled isothermal Hydro-Chemical processes during injection and storage of CO2 in the subsurface. It is intended to be used as a basis for comparing codes in order to better understand different couplings such as chemical reactions with two-phase flow, phase behavior with equilibrium reactions, dissolution and precipitation.