Reactive Multiphase Flow in Porous Media at the Darcy Scale: a Benchmark proposal

Description and data files for a "Reactive Two-phase flow Benchmark" Modeling reactive multiphase multicomponent flow in porous media leads to a highly nonlinear coupled system of degenerate partial differential equations and algebraic and/or ordinary differential equations, requiring 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<br> the codes dedicated to simulate 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“反应性两相流基准测试”（Reactive Two-phase flow Benchmark）数据集描述与数据文件。对多孔介质中的反应性多相多组分流进行建模，会导出高度非线性的退化偏微分方程与代数、常微分方程耦合系统，需采用特殊的数值处理手段。该基准测试共包含5个测试算例（涵盖一维与二维场景），难度梯度各异，旨在验证用于模拟地下二氧化碳注入与封存过程中耦合等温流体-化学过程的算法与程序代码。本基准测试可作为程序代码对比的基准，以助力研究者更好地理解各类耦合过程，例如两相流与化学反应的耦合、平衡反应下的相态行为，以及溶解与沉淀过程。