Arrhenius |
0 variables |
(1) |
\ln {\mu}_{12} = x_1 \cdot \ln {\mu}_1 + x_2 \cdot \ln {\mu}_2 |
|
---|
Lederer-Roegiers |
1 variable |
(2) |
\ln {\mu}_{12} = \frac{x_1}{x_1 + \alpha \, x_2} \cdot \ln {\mu}_1 + \frac{\alpha \, x_2}{x_1 + \alpha \,x_2} \cdot \ln {\mu}_2 |
|
---|
|
1 variable |
(3) |
\ln {\mu}_{12} = x_1 \cdot \ln {\mu}_1 + x_2 \cdot \ln {\mu}_2 + \epsilon \, x_1 \, x_2 |
|
---|
Oswal-Desai |
3 variables |
(4) |
\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 |
|
---|
Kendall-Monroe |
0 variables |
(5) |
{\nu}_{12}} = \left[ x_1 \cdot \nu_1^{1/3} + x_2 \cdot \nu_2^{1/3} \right]^3 |
|
---|
Refutas |
0 variables |
(6) |
{\nu}_{12} = \exp \left[ \, \exp \left(\frac{A_{12}-10.975}{14.534} \right) - 0.8 \, \right], \ \ A_{12} = y_1 \, A_1 + y_2 \, A_2, \ \ A_i = 14.534 \, \ln \left[ \,
\ln \left( \nu_i + 0.8
\right) \,
\right] + 10.975, \ \ i = \{ 1,2\} |
|
---|
The Lederer-Roegiers equation is reported to be the most accurate among single-variable models.
See also
Physics / Fluid Dynamics / Mixing Rules
References
Boris Zhmud, Viscosity Blending Equations, Lube-tech, 121, 2014