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A CALCULATION FOR THE VISCOSITY OF FLUIDS BY USING VAN DER WAALS EQUATION OF STATE

CHAIR TS KIM W PAK H JHON MS

Korean Journal of Chemical Engineering, April 1989, 6(2), 121-125(5), 10.1007/BF02697489

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Abstract

A new equation for the viscosity of fluid is presented by considering that the viscosity is equal to the product of the shear pressure and the shear relaxation time. The shear pressure and the shear relaxation time are calculated thermodynamically by applying the van der Waals model for fluids. The calculated viscosities for various simple substances are in good agreements with those of the observed values through liquid-critical point-gas region.

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