The effect of cohesion on the discharge of a granular material through the orifice of a silo

We present the results of both experimental and numerical investigations of the silo discharge for a cohesive granular material. In our study, thanks to a cohesion-controlled granular material (CCGM) we propose to investigate the effect of the cohesive length l c , on the discharge of a silo for two...

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Bibliographic Details
Published in:EPJ Web of Conferences 2021-01, Vol.249, p.8014
Main Authors: Gans, Adrien, Aussillous, Pascale, Dalloz, Blanche, Nicolas, Maxime
Format: Article
Language:English
Subjects:
Cohesion
Configurations
Discharge
Granular materials
Mass flow rate
Orifices
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Summary:We present the results of both experimental and numerical investigations of the silo discharge for a cohesive granular material. In our study, thanks to a cohesion-controlled granular material (CCGM) we propose to investigate the effect of the cohesive length l c , on the discharge of a silo for two different configurations, one axisymmetrical, and one quasi-2D rectangular silo. In both configurations, an adjustable bottom is used to control the size of the orifice. As observed for cohesionless granular material by previous studies, the mass flow rate and the density through an orifice are mostly controlled by the diameter of the orifice D . The experimental results of the quasi-2D silo are compared with continuum numerical simulations.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/202124908014