Homogenized lattice Boltzmann model for simulating multi-phase flows in heterogeneous porous media

A new homogenization approach for the simulation of multi-phase flows in heterogeneous porous media is presented. It based on lattice Boltzmann method and combines grayscale with multi-component Shan-Chen method. Thus, it mimics fluid-fluid solid-fluid interactions also within pores that are smaller than numerical discretization. The model successfully tested a broad variety single- two-phase flow problems. Additionally, its application to multi-scale problems demonstrated using electrolyte filling process realistic 3D lithium-ion battery electrode microstructures as an example. shows advantages over comparable methods from literature. interfacial tension wetting conditions independent not affected by homogenization. Moreover, all physical properties studied here continuous even across interfaces media. consistent original accurate, efficient, easy implement, can be applied many research fields, especially where fluid occurs