Mort, P; McKenzie, K; Wambaugh, J; Behringer, R, *Granular flow through an orifice - effect of granule size and shape distributions*,
in World Congress on Particle Technology,
AIChE Annual Meeting, Conference Proceedings
(2006) .
**Abstract:**

*This paper investigates jamming probabilities of vertical granular flow through an orifice, specifically the effects of granule size distribution, granule shape and the normal stress above the orifice. Both wedge-shape and cylindrical hopper flows are considered. The jamming probability can be taken as a measure of differentiation between relatively free-flowing granules.*