Role of three-body interactions in formation of bulk viscosity in liquid argon

LISHCHUK, Sergey (2012). Role of three-body interactions in formation of bulk viscosity in liquid argon. The Journal of Chemical Physics, 136, p. 164501. [Article]

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13503:44590
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Abstract
With the aim of locating the origin of discrepancy between experimental and computer simulation results on bulk viscosity of liquid argon, a molecular dynamic simulation of argon interacting via ab initio pair potential and triple-dipole three-body potential has been undertaken. Bulk viscosity, obtained using Green-Kubo formula, is different from the values obtained from modeling argon using Lennard-Jones potential, the former being closer to the experimental data. The conclusion is made that many-body inter-atomic interaction plays a significant role in formation of bulk viscosity.
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