Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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A Paradigm for the Viscosity of Fluids

  • Published : 1988.08.20
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Abstract

A new paradigm for the viscosity of fluid is presented by considering the fact that the viscosity is equal to the shear stress divided by the shear rate. The shear stress is obtained from the sum of kinetic and internal pressures of fluid, and the shear rate is found from the phonon velocity divided by the mean free path of the phonon. The calculated viscosities for various simple substances are in excellent agreements with those of the observed data through the wide temperature range covered both of liquid and gas phase.

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References

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  2. A prediction of the abnormal behavior in the viscosity of liquid water under pressure vol.10, pp.2, 1988, https://doi.org/10.1007/bf02697404
  3. A Calculation for the Viscosity of Fluid at the Critical Point vol.23, pp.11, 2002, https://doi.org/10.5012/bkcs.2002.23.11.1524