Vertical motion of particles in vibration-induced granular capillarity

Journal article
(Original article)


Publication Details

Author(s): Fan F, Liu J, Ribeiro Parteli EJ, Pöschel T
Journal: EPJ Web of Conferences
Publication year: 2017
Volume: 140
ISSN: 2100-014X
Language: English


Abstract


When a narrow tube inserted into a static container filled with particles is subjected to vertical vibration, the particles rise in the tube, much resembling the ascending motion of a liquid column in a capillary tube. To gain insights on the particle dynamics dictating this phenomenon – which we term granular capillarity – we numerically investigate the system using the Discrete Element Method (DEM). We reproduce the dynamical process of the granular capillarity and analyze the vertical motion of the individual particles in the tube, as well as the average vertical velocities of the particles. Our simulations show that the height of the granular column fluctuates in a periodic or period-doubling manner as the tube vibrates, until a steady-state (capillary) height is reached. Moreover, our results for the average vertical velocity of the particles in the tube at different radial positions suggest that granular convection is one major factor underlying the particle-based dynamics that lead to the granular capillarity phenomenon.



FAU Authors / FAU Editors

Pöschel, Thorsten Prof. Dr.
Lehrstuhl für Multiscale Simulation of Particulate Systems
Ribeiro Parteli, Eric Josef Dr.
Lehrstuhl für Multiscale Simulation of Particulate Systems


External institutions with authors

University of Shanghai for Science and Technology (USST)


How to cite

APA:
Fan, F., Liu, J., Ribeiro Parteli, E.J., & Pöschel, T. (2017). Vertical motion of particles in vibration-induced granular capillarity. EPJ Web of Conferences, 140. https://dx.doi.org/10.1051/epjconf/201714016008

MLA:
Fan, Fengxian, et al. "Vertical motion of particles in vibration-induced granular capillarity." EPJ Web of Conferences 140 (2017).

BibTeX: 

Last updated on 2018-06-08 at 17:08