Computing and Comparing Effective Properties for Flow and Transport in Computer-Generated Porous Media

Table 3

Past work on diffusive tortuosity.

Study	Samples considered	Tortuosity–porosity fit	Notes
[48]	Array of cylinders (2D)
[50]	Diffusion of electrolytes in membrane
[52]	Bed of uniform spheres (applicable to overlapping, nonuniform spheres)
[43]	Isotropic system,
[31]	Fine-grained uncemented sediments
[55]	Isotropic representative unit cell		2D: , 3D:
[56]	Random, partial overlapping shapes		= shape factor
[46]	Voronoi channel geometries,

referenced in [57].
referenced in [30, 31].