DOI: 10.1140/epje/i2002-10089-9
Thermodynamics and effective temperatures in sheared granular matter and emulsions
H. MakseLevich Institute and Physics Department, City College of New York, New York, NY 10031, USA makse@levdec.engr.ccny.cuny.edu
(Received 25 April 2002 and Received in final form 28 October 2002 / Published online: 23 December 2002)
Abstract
Recent theories postulate that the non-equilibrium behavior of systems
experiencing jamming or structural arrest could be described by
equilibrium thermodynamic concepts. If a thermodynamic framework can
describe the behavior of systems far from equilibrium, then an
effective temperature with a true thermodynamic meaning exists as a
key parameter in characterizing the material's properties. In order
to examine the validity of the thermodynamics for jammed systems, we
perform a numerical experiment with a realistic granular matter model
specially conceived to be reproducible in the laboratory. The results
strongly support the thermodynamic picture.
81.05.Rm - Porous materials; granular materials.
83.80.Lz - Physiological materials (e.g. blood, collagen, etc.).
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2002
