Origin of line tension for a Lennard-Jones nanodroplet

Joost Weijs, Joost H. Weijs, Antonin Marchand, Bruno Andreotti, Detlef Lohse, Jacobus Hendrikus Snoeijer

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Abstract

The existence and origin of line tension has remained controversial in literature. To address this issue, we compute the shape of Lennard-Jones nanodrops using molecular dynamics and compare them to density functional theory in the approximation of the sharp kink interface. We show that the deviation from Young’s law is very small and would correspond to a typical line tension length scale (defined as line tension divided by surface tension) similar to the molecular size and decreasing with Young’s angle. We propose an alternative interpretation based on the geometry of the interface at the molecular scale
Original languageUndefined
Pages (from-to)022001-1-022001-11
Number of pages11
JournalPhysics of fluids
Volume23
Issue number2
DOIs
Publication statusPublished - 2011

Keywords

  • METIS-273879
  • IR-78781
  • Nanofluidics
  • Computational Fluid Dynamics
  • molecular dynamics method
  • liquid theory
  • density functional theory
  • Surface tension
  • drops
  • Lennard-Jones potential

Cite this

Weijs, J., Weijs, J. H., Marchand, A., Andreotti, B., Lohse, D., & Snoeijer, J. H. (2011). Origin of line tension for a Lennard-Jones nanodroplet. Physics of fluids, 23(2), 022001-1-022001-11. https://doi.org/10.1063/1.3546008