Electrically induced tunable cohesion in granular systems

Details Electrically induced tunable cohesion in granular systems Electrically induced tunable cohesion in granular systems

2010-07-02

arxiv.org/abs/1007.0369v2

Physics

Condensed Matter

Other Condensed Matter

accepted for publication in "Journal of Statistical Mechanics: Theory and Experiment"

Scientific paper

Experimental observations of confined granular materials in the presence of an electric field that induces cohesive forces are reported. The angle of repose is found to increase with the cohesive force. A theoretical model for the stability of a granular heap, including both the effect of the sidewalls and cohesion is proposed. A good agreement between this model and the experimental results is found. The steady-state flow angle is practically unaffected by the electric field except for high field strengths and low flow rates.

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