Two dimension porous media reconstruction using granular model under influence of gravity

TL;DR

This paper presents a molecular dynamics simulation approach for reconstructing 2-D porous media using granular grains under gravity, analyzing different configurations and mixtures to understand porosity variations.

Contribution

It introduces a granular model for 2-D pore generation under gravity, exploring effects of grain size distribution, configuration, and density on porosity.

Findings

Heterogeneous density mixtures yield higher porosity at higher initial heights.

Porosity varies with initial height and grain configuration.

Different configurations influence porosity outcomes under gravity.

Abstract

Modeling of pores generation in 2-D with granular grains using molecular dynamics method is reported in this work. Grains with certain diameter distribution are let falling due to gravity. Three configurations (larger diameter on top, smaller diameter on top, and mixed) and two kinds of mixture (same grains density and same grains mass) are used in the simulation. Mixture with heterogen density gives higher porosity than the homogen one for higher initial height, but change into opposite condition for lower initial height.