Molecular thermal phenomena in an ultrathin lubrication liquid film of linear molecules between solid surfaces

Taku Ohara, Daichi Torii

研究成果: Article査読

13 被引用数 (Scopus)

抄録

Molecular dynamics simulation has been performed on an ultra-thin lubrication liquid film, where the liquid film of diatomic molecules having a thickness of molecular scale (several nanometers) is sheared by two parallel solid walls moving at different speeds. The Couette-like flow is generated and energy conversion from the macroscopic flow energy to thermal energy, which is the viscous heating in a macroscopic sense, occurs in the liquid film. It was observed in the present simulations that the thermal phenomena in the liquid film are far from the macroscopically expected ones; thermal energy is not distributed evenly to each degree of freedom of molecular motion, and energy transfer in the liquid adjacent to the solid surface is contributed by molecular motion in a manner different from those in a bulk liquid.

本文言語English
ページ(範囲)265-279
ページ数15
ジャーナルMicroscale Thermophysical Engineering
9
3
DOI
出版ステータスPublished - 2005 7 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science (miscellaneous)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Physics and Astronomy (miscellaneous)

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