Discrete Element Modeling of Discharge of Granular Matter from a Silo at Different Eccentric Opening

In this paper, the numerical investigation of monodispersed dense granular flow in the silo of eccentric holes has been done using Hertz-Mindlin's no-slip contact model by open-source software LIGGGHTS-PUBLIC-3.8.0. This work is primarily motivated to find the difference between the flow dynamics of one eccentric opening and two eccentric openings. The discharge dynamics of the flow have been analyzed numerically. The flow was symmetric about the center of the silo for two eccentric openings. We found some distinctive flow dynamics, like one eccentric opening, three flow regimes, static regime, eroding regime, and the central accelerating regime in the case of two eccentric openings. It is observed that the velocity near the orifice is maximum, and as the height increases, the magnitude of velocity decreases. The maximum velocity is observed at the centerline of the opening.