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Geometric partition functions of cellular systems: Explicit calculation of the entropy in two and three dimensions

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Abstract.

A method is proposed for the characterisation of the entropy of cellular structures, based on the compactivity concept for granular packings. Hamiltonian-like volume functions are constructed both in two and in three dimensions, enabling the identification of a phase space and making it possible to take account of geometrical correlations systematically. Case studies are presented for which explicit calculations of the mean vertex density and porosity fluctuations are given as functions of compactivity. The formalism applies equally well to two- and three-dimensional granular assemblies.

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Authors and Affiliations

  1. Earth Science and Engineering, Imperial College, London, SW7 2BP, UK

    R. Blumenfeld

  2. Biological and Soft Systems, Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE, UK

    R. Blumenfeld & S. F. Edwards

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  1. R. Blumenfeld
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  2. S. F. Edwards
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Correspondence to R. Blumenfeld.

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Blumenfeld, R., Edwards, S. Geometric partition functions of cellular systems: Explicit calculation of the entropy in two and three dimensions. Eur. Phys. J. E 19, 23–30 (2006). https://doi.org/10.1140/epje/e2006-00014-7

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  • DOI: https://doi.org/10.1140/epje/e2006-00014-7

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