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The minimization of mechanical work in vibrated granular matter

Clewett, James P.D.; Wade, Jack; Bowley, R.M.; Herminghaus, Stephan; Swift, Michael R.; Mazza, Marco G.

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Authors

James P.D. Clewett

Jack Wade

R.M. Bowley

Stephan Herminghaus

Michael R. Swift

Marco G. Mazza



Abstract

Experiments and computer simulations are carried out to investigate phase separation in a granular gas under vibration. The densities of the dilute and the dense phase are found to follow a lever rule and obey an equation of state. Here we show that the Maxwell equal-areas construction predicts the coexisting pressure and binodal densities remarkably well, even though the system is far from thermal equilibrium. This construction can be linked to the minimization of mechanical work associated with density fluctuations without invoking any concept related to equilibrium-like free energies.

Citation

Clewett, J. P., Wade, J., Bowley, R., Herminghaus, S., Swift, M. R., & Mazza, M. G. (in press). The minimization of mechanical work in vibrated granular matter. Scientific Reports, 6, Article 28726. https://doi.org/10.1038/srep28726

Journal Article Type Article
Acceptance Date Jun 3, 2016
Online Publication Date Jul 4, 2016
Deposit Date Dec 21, 2016
Publicly Available Date Dec 21, 2016
Journal Scientific Reports
Electronic ISSN 2045-2322
Publisher Nature Publishing Group
Peer Reviewed Peer Reviewed
Volume 6
Article Number 28726
DOI https://doi.org/10.1038/srep28726
Keywords Phase transitions, Critical phenomena, Statistical physics
Public URL https://nottingham-repository.worktribe.com/output/802362
Publisher URL http://www.nature.com/articles/srep28726
Contract Date Dec 21, 2016

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