empirical model parameters
\ln {\mu}_{12} = x_1 \cdot \ln {\mu}_1 + x_2 \cdot \ln {\mu}_2 + \epsilon \, x_1 \, x_2 + K_1 \, x_1 \, x_2 \, (x_1 - x_2) + K_2 \, x_1 \, x_2 \, (x_1 - x_2)^2 |
where
| dynamic viscosity of fluid mixture | dynamic viscosity of the 1st fluid component | dynamic viscosity of the 2nd fluid component | |||
empirical model parameters | mole fraction of the 1st fluid component | mole fraction of the 2nd fluid component |
The empirical parameters can be fitted to lab data.
Physics / Fluid Dynamics / Fluid Mixing Rules / Mixing Rules for Viscosity
S.L. Oswal,H.S. Desai, Studies of viscosity and excess molar volume of binary mixtures. Fluid Phase Equilibria 149(1998) 359-376.