There are a variety of geometrical shapes that make up real porous structures (either natural or synthetic) and sometimes the distribution of the materials interacts with processes occurring inside them.
If we are looking to study the effect of a certain porous structure on the processes it handles we must have a spatial representation of the material at small scales. Computational algorithms can be developed to artificially recreate 3D structures that represent real materials.
Outlined in this post is some examples of codes I’ve developed, where often the: porosity (phase fraction), particle size and shape are input parameters. Let me know if you are interested in using any of the codes or want to contribute.
Daniel Niblett Research 