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Granular Matter

, 22:12 | Cite as

Rotational statistics in granular flows of smooth cylindrical particles

  • J. Jantzi
  • J. S. OlafsenEmail author
Original Paper
  • 24 Downloads
Part of the following topical collections:
  1. In Memoriam of Robert P. Behringer, late Editor in Chief of Granular Matter

Abstract

We report the results of an experiment to investigate the energy dissipation in the rotational degree of freedom for smooth cylindrical particles in a driven granular flow. The 2D geometry and the experimental design allow for the measurement of three degrees of freedom in the dynamics: the rotational degree of freedom for the disks to spin about their cylindrical axes as well as the two translational degrees of freedom of the particles within the cell. The rotational velocity statistics demonstrate non-Gaussian behavior as well as a significant amount of energy being dissipated through the flow via the tangential friction between particles. These results are significant in that many driven granular experiments use smooth cylindrical or spherical particles to investigate granular dynamics, but the contribution to the dynamics from the rotational degrees of freedom is often unmeasured.

Keywords

Driven granular flow Experimental Non-equilibrium thermostatistics Kinetic theory Rotational velocity statistics 

Notes

Acknowledgements

The authors acknowledge the support in part by funds from the Vice Provost for Research at Baylor University.

Compliance with ethical standards

Conflict of interest

The authors declare they have no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of PhysicsBaylor UniversityWacoUSA

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