Nanoflow hydrodynamics

Jesper Schmidt Hansen, Jeppe C. Dyre, Peter J. Daivis, B.D. Todd, Henrik Bruus

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    Abstract

    We show by nonequilibrium molecular dynamics simulations that the Navier-Stokes equation does not correctly describe water flow in a nanoscale geometry. It is argued that this failure reflects the fact that the coupling between the intrinsic rotational and translational degrees of freedom becomes important for nanoflows. The coupling is correctly accounted for by the extended Navier-Stokes equations that include the intrinsic angular momentum as an independent hydrodynamic degree of freedom. © 2011 American Physical Society.
    Original languageEnglish
    JournalPhysical Review E
    Volume84
    Issue number3
    Pages (from-to)036311
    ISSN2470-0045
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Nonequilibrium molecular dynamics simulation
    • Nanoflows
    • Viscous flow
    • Translational degrees of freedoms
    • Water flows
    • Nano-scale geometries
    • Navier Stokes equations
    • Hydrodynamics
    • Degrees of freedom (mechanics)
    • Degree of freedom
    • Molecular dynamics

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