The minimization of mechanical work in vibrated granular matter

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...

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Autores principales: Clewett, James P. D., Wade, Jack, Bowley, R. M., Herminghaus, Stephan, Swift, Michael R., Mazza, Marco G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4931499/
https://www.ncbi.nlm.nih.gov/pubmed/27373719
http://dx.doi.org/10.1038/srep28726
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author Clewett, James P. D.
Wade, Jack
Bowley, R. M.
Herminghaus, Stephan
Swift, Michael R.
Mazza, Marco G.
author_facet Clewett, James P. D.
Wade, Jack
Bowley, R. M.
Herminghaus, Stephan
Swift, Michael R.
Mazza, Marco G.
author_sort Clewett, James P. D.
collection PubMed
description 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.
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spelling pubmed-49314992016-07-06 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. Sci Rep Article 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. Nature Publishing Group 2016-07-04 /pmc/articles/PMC4931499/ /pubmed/27373719 http://dx.doi.org/10.1038/srep28726 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Clewett, James P. D.
Wade, Jack
Bowley, R. M.
Herminghaus, Stephan
Swift, Michael R.
Mazza, Marco G.
The minimization of mechanical work in vibrated granular matter
title The minimization of mechanical work in vibrated granular matter
title_full The minimization of mechanical work in vibrated granular matter
title_fullStr The minimization of mechanical work in vibrated granular matter
title_full_unstemmed The minimization of mechanical work in vibrated granular matter
title_short The minimization of mechanical work in vibrated granular matter
title_sort minimization of mechanical work in vibrated granular matter
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4931499/
https://www.ncbi.nlm.nih.gov/pubmed/27373719
http://dx.doi.org/10.1038/srep28726
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