Transport coefficients of square-well fluids |
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Authors: | DK Dwivedee Rajat SrivastavaKN Khanna |
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Institution: | Department of Physics, V.S.S.D. College, Kanpur, India |
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Abstract: | We analyze the analytical form of the velocity time correlation function of a hard sphere system obtained by employing generalized Langevin equation for a square-well fluid. The self-diffusion coefficient and shear viscosity have been calculated using this analytical form of velocity tcf for a square-well fluid. The addition of an attractive square-well potential in place of hard sphere leads to a substantial influence on transport coefficients. Unlike harmonic model diffusion coefficient no longer vanishes. A breakdown of the Stokes–Einstein relation is observed at low densities for a square-well fluid. |
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Keywords: | Velocity time correlation function Diffusion coefficient Shear viscosity Square-well fluid |
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