Phys. Rev. E 72, 026103 (2005) [4 pages]Lennard-Jones and lattice models of driven fluidsReceived 20 April 2005; published 3 August 2005 We introduce a nonequilibrium off-lattice model for anisotropic phenomena in fluids. This is a Lennard-Jones generalization of the driven lattice-gas model in which the particles’ spatial coordinates vary continuously. A comparison between the two models allows us to discuss some exceptional, hardly realistic features of the original discrete system—which has been considered a prototype for nonequilibrium anisotropic phase transitions. We thus help to clarify open issues, and discuss on the implications of our observations for future investigation of anisotropic phase transitions. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.72.026103
DOI:
10.1103/PhysRevE.72.026103
PACS:
64.60.−i, 05.10.−a, 05.60.−k, 05.70.Fh
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