Student Work

Viscosity of Lennard-Jones fluids

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Molecular Dynamics simulations were used to measure the viscosity of a Lennard-Jones fluid. The simulation consisted of 500 type , 500 type particles, and a probe particle. An external force was applied to the probe particle and the terminal velocity was measured using curve-fitting techniques. Once the terminal velocity of the probe was known a calculation of the viscosity of the liquid was possible. The measured viscosities varied from n=0.392 ? 0.003 to n=1.04 ? 0.03. The viscosity was found to have a strong dependence on the radius of the probe and the external force. No functional dependence of the temperature of the liquid on viscosity coud be discovered.

  • This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
Creator
Publisher
Identifier
  • 03E010M
Advisor
Year
  • 2003
Date created
  • 2003-01-01
Resource type
Major
Rights statement
Last modified
  • 2021-10-11

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