@article{Wang2023, 
author = {Wendong Wang and Qiuheng Xie and Han Wang and Yuliang Su and Sina Rezaei-Gomari},
title = {Pseudopotential-based multiple-relaxation-time lattice Boltzmann model for multicomponent and multiphase slip flow},
year = {2023},
journal = {Advances in Geo-Energy Research},
volume = {9},
number = {2},
pages = {106-116},
keywords = {Slip boundary, multiphase flow, lattice Boltzmann method, combination parameter, diffusive Maxwell's reflection},
url = {https://www.sciopen.com/article/10.46690/ager.2023.08.04},
doi = {10.46690/ager.2023.08.04},
abstract = {The microscale liquid flow in nanoscale systems considering slip boundary has been widely studied in recent years, however, they are limited to single-phase flow. As in nature, multicomponent and multiphase flows can also exist with non-zero slip velocities, such as oil/water slip flow in nanoporous shale. In this paper, a novel multicomponent-multiphase multiple-relaxation-time lattice Boltzmann method with a combinational slip boundary condition is developed to study the two-phase slip flow behaviors. The proposed combined slip boundary condition is derived from adjustments to the conventional diffusive Maxwell’s reflection and half-way bounce-back scheme boundary parameters, incorporating a compelled conservation requirement. With the analysis of simulations for the layer, slug, and droplet types of two-phase flow in single pores, and two-phase flow in porous media with complex wall geometry, it can be concluded that the proposed schemes of two-phase slip boundary conditions are particularly suitable for multicomponent and multiphase flow with a non-zero slip velocity. The proposed model can be used to determine relative permeability and simulate spontaneous imbibition in particular in shale reservoirs where those flow properties are hard-to-determine.}
}