Shear viscosity of a simple fluid over a wide range of strain rates

István Borzsák*, Peter T. Cummings, Denis J. Evans

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    41 Citations (Scopus)

    Abstract

    The shear viscosity of the Weeks-Chandler-Andersen (WCA) fluid at the Lennard-Jones triple point has been calculated over a wide range of strain rates using the transient time correlation function (TTCF) formalism It has been demonstrated that these calculations can be carried out at arbitrarily low strain rates with the precision of the Green-Kubo calculations. At high strain rates, the calculated data agree within the error bars with more precise data acquired using the computationally less demanding steady state (SS) non-equilibrium molecular dynamics (NEMD) method. The linear variation of viscosity with the square root of the strain rate is discussed.

    Original languageEnglish
    Pages (from-to)2735-2738
    Number of pages4
    JournalMolecular Physics
    Volume100
    Issue number16
    DOIs
    Publication statusPublished - 20 Aug 2002

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