Electrically induced tunable cohesion in granular systems

Autor: Jean-François Métayer, Alain Faisant, Patrick Richard, Renaud Delannay
Přispěvatelé: Institut de Physique de Rennes (IPR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2010
Předmět:
Statistics and Probability
Materials science
Flow angle
FOS: Physical sciences
Granular material
01 natural sciences
010305 fluids & plasmas
Electrical and magnetic phenomena (Experiments and Theory)
Electric field
Avalanches (Experiments and Theory)
0103 physical sciences
PACS:83.80.Fg
45.80.Ht
45.05.+x
[PHYS.COND.CM-SM]Physics [physics]/Condensed Matter [cond-mat]/Statistical Mechanics [cond-mat.stat-mech]
010306 general physics
Condensed Matter - Statistical Mechanics
Heap (data structure)
Statistical Mechanics (cond-mat.stat-mech)
Statistical and Nonlinear Physics
Mechanics
Granular matter
Angle of repose
Volumetric flow rate
Condensed Matter - Other Condensed Matter
[PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]
Cohesion (chemistry)
High field
Statistics
Probability and Uncertainty
Other Condensed Matter (cond-mat.other)
Zdroj: Journal of Statistical Mechanics: Theory and Experiment
Journal of Statistical Mechanics: Theory and Experiment, 2010, 2010 (08), pp.P08003. ⟨10.1088/1742-5468/2010/08/P08003⟩
Journal of Statistical Mechanics: Theory and Experiment, IOP Publishing, 2010, 2010 (08), pp.P08003. ⟨10.1088/1742-5468/2010/08/P08003⟩
ISSN: 1742-5468
DOI: 10.48550/arxiv.1007.0369
Popis: 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.
Comment: accepted for publication in "Journal of Statistical Mechanics: Theory and Experiment"
Databáze: OpenAIRE
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