Granular dynamics and gravity

The role of gravity on the dynamics of granular particles is examined via their velocity distributions. Acceleration due to gravity, particle number and the coefficient of restitution have all been varied. Various quantitative relationships governing the relationship between parameters involved in t...

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Bibliographic Details
Published in:Soft matter 2020-10, Vol.16 (4), p.9253-9261
Main Author: Sánchez, Rodrigo
Format: Article
Language:English
Subjects:
Acceleration
Gravitation
Horizontal distribution
Velocity
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Summary:The role of gravity on the dynamics of granular particles is examined via their velocity distributions. Acceleration due to gravity, particle number and the coefficient of restitution have all been varied. Various quantitative relationships governing the relationship between parameters involved in the vertical and horizontal velocity component distributions are derived and applied to the data, and for the horizontal velocity components' distribution in particular remarkably good agreement is obtained. A scheme for deriving velocity distributions of granular systems subject to gravity is derived, based on an effective chemical potential.
ISSN:1744-683X
1744-6848
DOI:10.1039/d0sm01203c