On the mass flow rate from silos with lateral exit holes

A. Medina, D. A, G. J, K. Kesava Rao, C. A


The mass flow rate, $\overset{\cdot }{m}$, associated with the lateral outflow of dry, cohesionless granular material through circular orifices of diameter $D$ made in vertical walls of silos was measured experimentally in order to determine also the influence of the wall thickness of the silo, $w$. Geometrical arguments, based on the outflow happening, are given in order to have a general correlation for $\overset{\cdot }{m}$ embracing both quantities, $D$ and $w$. The angle of repose appears to be an important characterization factor in these kinds of flows.


Granular systems; granular flow; static sandpiles

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Revista Mexicana de Física

ISSN: 2683-2224 (on line), 0035-001X (print)

Bimonthly publication of Sociedad Mexicana de Física, A.C.
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