The Stokes-Einstein relation, relating the self-diffusion coefficient D to the shear viscosity η (D = kBT/2πησ), is tested for two-and three-dimensional fluids. The influence of attractive potential and temperature on the validity of the Stokes-Einstein relation by employing square-well potential is analyzed. A breakdown of the Stokes-Einstein relation is observed at low temperatures for three-dimensional fluid by using the Nigra and Evans11 model and with that obtained from the velocity autocorrelation function10 and for twodimensional fluids by using the Garcia-Rojo et al.12 model for hard discs. © 2009 American Chemical Society.

Stokes-Einstein relation in two-and three-dimensional fluids

Srivastava R.
Primo
Writing – Original Draft Preparation
;
2009-01-01

Abstract

The Stokes-Einstein relation, relating the self-diffusion coefficient D to the shear viscosity η (D = kBT/2πησ), is tested for two-and three-dimensional fluids. The influence of attractive potential and temperature on the validity of the Stokes-Einstein relation by employing square-well potential is analyzed. A breakdown of the Stokes-Einstein relation is observed at low temperatures for three-dimensional fluid by using the Nigra and Evans11 model and with that obtained from the velocity autocorrelation function10 and for twodimensional fluids by using the Garcia-Rojo et al.12 model for hard discs. © 2009 American Chemical Society.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11587/484165
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