The minimization of mechanical work in vibrated granular matter

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Clewett, James P.D., Wade, Jack, Bowley, R.M., Herminghaus, Stephan, Swift, Michael R. and Mazza, Marco G. (2016) The minimization of mechanical work in vibrated granular matter. Scientific Reports, 6 . 28726/1-28726/8. ISSN 2045-2322

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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.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/802362
Keywords: Phase transitions, Critical phenomena, Statistical physics
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
Identification Number: https://doi.org/10.1038/srep28726
Depositing User: Swift, Michael
Date Deposited: 21 Dec 2016 11:08
Last Modified: 04 May 2020 18:03
URI: https://eprints.nottingham.ac.uk/id/eprint/39469

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