Geometric Models for Isotropic Random Porous Media: A Review

Figure 5

Normalized standard deviation 𝜎^𝑉_𝑁/𝑉_𝑉 and 𝜎^𝑆_𝑁/𝑆_𝑉 of respectively volume fraction, 𝑉_𝑉, and specific surface area, 𝑆_𝑉, of cherry-pit models with Gamma distributed radii and 𝜎/𝑟=0.707 versus number 𝑁 of spheres used for the construction of a model. The standard deviation is calculated from 10 samples for each model. 𝑆_𝑉: rhombuses and solid line: 𝜆=0.75, triangles and dashed line: 𝜆=0.95; 𝑉_𝑉: circles and dotted line: 𝜆=0.75, squares and dashed line: 𝜆=0.95.