Intermolecular momentum transfer in a simple liquid and its contribution to shear viscosity

T. Ohara, D. Suzuki

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Momentum transfer in a sheared liquid is analyzed with a focus on the intermolecular momentum transfer (IMT). The IMT, which determines shear viscosity of liquids, is examined based on the result of molecular dynamics (MD) simulations for a simple liquid modeled by the Lennard-Jones (12-6) potential. Distortion of liquid structure, which is characterized by spherical symmetry breaking in the pair distribution of molecules, is reproduced by the MD simulation and its effect on the characteristics of the IMT, which includes a negative momentum transfer in a certain range of intermolecular distance, is discussed. The appearance of negative IMT depends on characteristics of the intermolecular potential, and it is predicted that the IMT will show a different response for repulsive soft-sphere liquids.

Original languageEnglish
Pages (from-to)117-130
Number of pages14
JournalMicroscale Thermophysical Engineering
Volume5
Issue number2
DOIs
Publication statusPublished - 2001 Apr

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)

Fingerprint

Dive into the research topics of 'Intermolecular momentum transfer in a simple liquid and its contribution to shear viscosity'. Together they form a unique fingerprint.

Cite this