Viscosities of the Gay-Berne nematic liquid crystal
A. M. Smondyrev, G. B. Loriot, R. A. Pelcovits
TL;DR
This paper reports molecular dynamics simulations of Gay-Berne liquid crystals, analyzing their viscosities in nematic and isotropic phases, with results aligning well with experimental observations.
Contribution
It provides detailed simulation data on viscosities of Gay-Berne liquid crystals, including temperature dependence and phase behavior, which was previously less explored.
Findings
Rotational and shear viscosities vary with temperature.
Bulk viscosities are larger than shear viscosities.
Nonmonotonic behavior observed in one shear viscosity.
Abstract
We present molecular dynamics simulation measurements of the viscosities of the Gay-Berne phenomenological model of liquid crystals in the nematic and isotropic phases. The temperature dependence of the rotational and shear viscosities, including the nonmonotonic behavior of one shear viscosity are in good agreement with experimental data. The bulk viscosities are significantly larger than the shear viscosities, again in agreement with experiment.
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