Vertical motion of particles in vibration-induced granular capillarity

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Fan F, Liu J, Ribeiro Parteli EJ, Pöschel T
Zeitschrift: EPJ Web of Conferences
Jahr der Veröffentlichung: 2017
Band: 140
ISSN: 2100-014X
Sprache: Englisch


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-Autoren / FAU-Herausgeber

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


Autor(en) der externen Einrichtung(en)
University of Shanghai for Science and Technology (USST)


Zitierweisen

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: 

Zuletzt aktualisiert 2018-06-08 um 17:08