# Decoupling Geometrical and Kinematic Contributions to the Silo Clogging Process.

@article{Gella2018DecouplingGA, title={Decoupling Geometrical and Kinematic Contributions to the Silo Clogging Process.}, author={Diego Gella and Iker Zuriguel and Diego Maza}, journal={Physical review letters}, year={2018}, volume={121 13}, pages={ 138001 } }

Based on the implementation of a novel silo discharge procedure, we are able to control the grains velocities regardless of the outlet size. This allows isolating the geometrical and kinematic contributions to the clogging process. We find that, for a given outlet size, reducing the grains velocities to extremely low values leads to a clogging probability increment of almost two orders of magnitude, hence revealing the importance of particle kinematics in the silo clogging process. Then, we…

## 17 Citations

### Effect of hopper angle on granular clogging.

- GeologyPhysical review. E
- 2019

The probability of clogging can be reduced by three orders of magnitude by increasing the hopper angle, and for very large hopper angles, the avalanche size grows with the outlet size stepwise, in contrast to the case of a flat-bottom silo for which 〈s〉 grows smoothly with D.

### Granular internal dynamics in a silo discharged with a conveyor belt

- PhysicsJournal of Fluid Mechanics
- 2021

Abstract The dynamics of granular media within a silo in which the grain velocities are controlled by a conveyor belt has been experimentally investigated. To this end, the building of coarse-grained…

### Clogging-jamming connection in narrow vertical pipes.

- GeologyPhysical review. E
- 2020

Experimental evidence of clogging due to the spontaneous development of hanging arches when a granular sample composed of spherical particles flows down a narrow vertical pipe and the discovery that the interparticle normal force distributions broaden in systems with higher probability of clogged systems suggests that clogging and jamming are connected in pipe flow.

### On the dual effect of obstacles in preventing silo clogging in 2D

- EngineeringCommunications Physics
- 2022

Placing an obstacle in front of a bottleneck has been proposed as a sound alternative to improve the flow of discrete materials in a wide variety of scenarios. Nevertheless, the physical reasons…

### On the dual effect of obstacles in preventing silo clogging in 2D

- EngineeringCommunications Physics
- 2022

Placing an obstacle in front of a bottleneck has been proposed as a sound alternative to improve the flow of discrete materials in a wide variety of scenarios. Nevertheless, the physical reasons…

### Study of Clogging Phenomenon for a Conical Hopper: The Influence of Particle Bed Height and Hopper Angle

- Physics
- 2021

The granular flow is one of the principal issues for the design of pebble bed reactors. Particularly, the clogging phenomenon raises an important issue for pebble bed reactors. In this paper, we…

### Influence of the solid fraction on the clogging by bridging of suspensions in constricted channels.

- GeologySoft matter
- 2022

Clogging can occur whenever a suspension of particles flows through a confined system. The formation of clogs is often correlated to a reduction in the cross-section of the channel. In this study, we…

### Non-monotonic dependence of avalanche durations on particle velocities in the discharge of a silo

- PhysicsEPJ Web of Conferences
- 2021

The distributions of avalanche times between successive clog events are analyzed in a silo discharged with a conveyor belt. In a previous work [Phys. Rev. Lett. 121, 138001 (2018)], we measured the…

### Understanding the local flow rate peak of a hopper discharging discs through an obstacle using a Tetris-like model

- PhysicsGranular Matter
- 2019

Placing a round obstacle above the orifice of a flat hopper discharging uniform frictional discs has been experimentally and numerically shown in the literature to create a local peak in the…

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