The Hagen-Beverloo law for outflow of granular solids from holes on side walls

Abstract

In this work we have analyzed experimentally the lateral mass outflow rate $% \overset{\cdot }{m}$, for cohesionless granular solids (coarse grains) through circular orifices of diameter $D$ made on side walls of bins. Experiments were performed to determine the influence of the wall thickness of the bin $w$, and of the grain diameter $d$ on $\overset{\cdot }{m}$. Geometrical and physical arguments are given to get a general correlation for $\overset{\cdot }{m}$ as a function of $D$, $d$, and $w$. This correlation can be termed the Hagen-Beverloo law for orifices on side walls.