Challenges in nanofluidics-beyond Navier-Stokes at the molecular scale

Daivis, P and Todd, B 2018, 'Challenges in nanofluidics-beyond Navier-Stokes at the molecular scale', Processes, vol. 6, no. 9, pp. 1-14.


Document type: Journal Article
Collection: Journal Articles

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Title Challenges in nanofluidics-beyond Navier-Stokes at the molecular scale
Author(s) Daivis, P
Todd, B
Year 2018
Journal name Processes
Volume number 6
Issue number 9
Start page 1
End page 14
Total pages 14
Publisher MDPI
Abstract The fluid dynamics of macroscopic and microscopic systems is well developed and has been extensively validated. Its extraordinary success makes it tempting to apply Navier-Stokes fluid dynamics without modification to systems of ever decreasing dimensions as studies of nanofluidics become more prevalent. However, this can result in serious error. In this paper, we discuss several ways in which nanoconfined fluid flow differs from macroscopic flow. We give particular attention to several topics that have recently received attention in the literature: slip, spin angular momentum coupling, nonlocal stress response and density inhomogeneity. In principle, all of these effects can now be accurately modelled using validated theories. Although the basic principles are now fairly well understood, much work remains to be done in their application.
Subject Soft Condensed Matter
Keyword(s) Hydrodynamics
Molecular dynamics
Nanofluidics
Non-local constitutive equations
Slip
Spin-coupling
DOI - identifier 10.3390/pr6090144
Copyright notice © 2018 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
ISSN 2227-9717
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