| We construct a discrete model of fluid particles according to a two generator formalism for non-equilibrium thermodynamics. The model has the form of Smoothed Particle Hydrodynamics including correct thermal fluctuations. A slight variation of the model reproduces the Dissipative Particle Dynamics model with any desired thermodynamic behavior. The resulting algorithms have the following properties: mass, momentum, and energy are conserved, entropy is a non-decreasing function of time and the thermal fluctuations produce the correct Einstein distribution function at equilibrium.
for LaTeX users @article{PEspañol1999-83,
author = {P. Español and M. Serrano and H. C. \"Ottinger},
title = {Thermodynamically admissible form for discrete hydrodynamics},
journal = {Phys. Rev. Lett.},
volume = {83},
pages = {4542-4545},
year = {1999}
}
\bibitem{PEspañol1999-83} P. Español, M. Serrano, H.C. \"Ottinger,
Thermodynamically admissible form for discrete hydrodynamics,
Phys. Rev. Lett. {\bf 83} (1999) 4542-4545.PEspañol1999-83
P. Español, M. Serrano, H.C. \"Ottinger
Thermodynamically admissible form for discrete hydrodynamics
Phys. Rev. Lett.,83,1999,4542-4545 |
mk@mat.ethz.ch
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