Lattice Boltzmann Simulation of Multicomponent Porous Media Flows With Chemical Reaction

Flows with chemical reactions in porous media are fundamental phenomena encountered many natural, industrial, and scientific areas. For such flows, most existing studies use continuum assumptions focus on volume-averaged properties macroscopic scales. Considering the complex structures fluid–solid interactions realistic situations, this study develops a sophisticated lattice Boltzmann (LB) model for simulating reactive flows pore scale. In present model, separate LB equations built multicomponent species evolutions, source terms derived heat mass transfer, boundary schemes formulated surface reaction, correction introduced temperature-dependent density. Thus, offers capability to capture pore-scale information of compressible/incompressible fluid motions, homogeneous reaction between miscible fluids, heterogeneous at interface media. Different scenarios density fingering investigated, effects viscosity contrast being clarified. Furthermore, by introducing thermal solid coke combustion is modeled During combustion, affected which results unstable fronts.