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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 12
BKCSDE 35(12)
December 20, 2014

Title	Molecular Dynamics Simulation Study of Transport Properties of Diatomic Gases
Author	Song Hi Lee, Jahun Kim*
Keywords	Molecular dynamics simulation, Diffusion, Viscosity, Thermal conductivity, Diatomic gases
Abstract	In this paper, we report thermodynamic and transport properties (diffusion coefficient, viscosity, and thermal conductivity) of diatomic gases (H2, N2, O2, and Cl2) at 273.15 K and 1.00 atm by performing molecular dynamics simulations using Lennard-Jones intermolecular potential and modified Green-Kubo formulas. The results of self-diffusion coefficients of diatomic gases obtained from velocity auto-correlation functions by Green-Kubo relation are in good agreement with those obtained from mean square displacements by Einstein relation. While the results for viscosities of diatomic gases obtained from stress auto-correlation functions underestimate the experimental results, those for thermal conductivities obtained from heat flux autocorrelation functions overestimate the experimental data except H2.
Page	3527 - 3531
Full Text	PDF

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