Fig. 7: Validation of the outer shell and multi-scale model.

Probability densities of the volume-equivalent diameter (a) and sphericity (b) of particles observed in CT data (blue) and model realizations (red). Bivariate probability densities of the volume-equivalent diameter and sphericity of particles observed in CT data (c) and model realizations (d). The corresponding sphericity distributions under the condition that d = 7.44 μm (e).