Consistent particle-based algorithm with a non-ideal equation of state

Details Consistent particle-based algorithm with a non-ideal equation of state Consistent particle-based algorithm with a non-ideal equation of state

2005-09-26

arxiv.org/abs/cond-mat/0509631v1

Europhys. Lett. 73, 664 (2006)

Physics

Condensed Matter

Soft Condensed Matter

7 pages including 4 figures

Scientific paper

10.1209/epl/i2005-10460-0

A thermodynamically consistent particle-based model for fluid dynamics with continuous velocities and a non-ideal equation of state is presented. Excluded volume interactions are modeled by means of biased stochastic multiparticle collisions which depend on the local velocities and densities. Momentum and energy are exactly conserved locally. The equation of state is derived and compared to independent measurements of the pressure. Results for the kinematic shear viscosity and self-diffusion constants are presented. A caging and order/disorder transition is observed at high densities and large collision frequency.

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