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Thermodynamically admissible form for discrete hydrodynamics

Pep Español·Hans Christian Öttinger
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Abstract

We construct a discrete model of fluid particles according to the GENERIC formalism. 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 algorithm has 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.

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Pep Español, Hans Christian Öttinger. 1999-01-12. Thermodynamically admissible form for discrete hydrodynamics. https://doi.org/10.1103/physrevlett.83.4542

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