Figure 5
From: The effect of particle shape on discharge and clogging

Particle-laden fluid flow: discharged elementary volumes before clogging as a function of orifice-to-particle size ratio do/d. Granular shapes: (a) 3D crosses, (b) cubes, (c) spheres and (d) 2D crosses. Datapoints: 280 independent experimental realizations, colored by initial suspension solidity Φi. Lines: power function (Eq. 5). The λ-exponent is a shape-related fitting parameter. Light gray lines added for relative reference among plot.