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Spontaneous fluctuation correlations in thermal lattice-gas automata

par Grosfils, Patrick ;Boon, Jean-Pierre ;Lallemand, Pierre
Référence Physical review letters, 68, 7, page (1077-1080)
Publication Publié, 1992

Article révisé par les pairs

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Résumé :

We construct a 19-bit lattice-gas model which is shown to exhibit spontaneous fluctuation correlations as produced in a thermal fluid system. Thus the lattice gas can be considered in the same sense as a real fluidas a reservoir of excitations with wavelengths and frequencies ranging from the microscopic level to the hydrodynamic scale. In particular the dynamic structure factor obtained from lattice-gas simulations is in agreement with the classical Rayleigh-Brillouin spectrum of real fluids. © 1992 The American Physical Society.