Origin of Granular Capillarity Revealed by Particle-Based Simulations

Fan F, Ribeiro Parteli EJ, Pöschel T (2017)

Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2017

Journal

Physical Review Letters American Physical Society

Book Volume: 118

Article Number: 218001

Journal Issue: 21

DOI: 10.1103/PhysRevLett.118.218001

Abstract

When a thin tube is dipped into water, the water will ascend to a certain height, against the action of gravity. While this effect, termed capillarity, is well known, recent experiments have shown that agitated granular matter reveals a similar behavior. Namely, when a vertical tube is inserted into a container filled with granular material and is then set into vertical vibration, the particles rise up along the tube. In the present Letter, we investigate the effect of granular capillarity by means of numerical simulations and show that the effect is caused by convection of the granular material in the container. Moreover, we identify two regimes of behavior for the capillary height ${Hc}^{\infty}$ depending on the tube-to-particle-diameter ratio, $D / d$ . For large $D / d$ , a scaling of ${Hc}^{\infty}$ with the inverse of the tube diameter, which is reminiscent of liquids, is observed. However, when $D / d$ decreases down to values smaller than a few particle sizes, a uniquely granular behavior is observed where ${Hc}^{\infty}$ increases linearly with the tube diameter.

Authors with CRIS profile

Eric Josef Ribeiro Parteli Lehrstuhl für Multiscale Simulation of Particulate Systems (MSS) Thorsten Pöschel Lehrstuhl für Multiscale Simulation of Particulate Systems (MSS)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials (EAM)

Involved external institutions

University of Shanghai for Science and Technology (USST)

China (CN)

How to cite

APA:

Fan, F., Ribeiro Parteli, E.J., & Pöschel, T. (2017). Origin of Granular Capillarity Revealed by Particle-Based Simulations. Physical Review Letters, 118(21). https://doi.org/10.1103/PhysRevLett.118.218001

MLA:

Fan, Fengxian, Eric Josef Ribeiro Parteli, and Thorsten Pöschel. "Origin of Granular Capillarity Revealed by Particle-Based Simulations." Physical Review Letters 118.21 (2017).

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