Krieger Dougherty equation viscosity ratio
Input(s)
\(\emptyset\): Porosity (fraction)
A: Dimensionless Constant (dimensionless)
\(\boldsymbol{\phi}_{\max }\): Volume Fraction for the Spheres (fraction)
Output(s)
\(\boldsymbol{\mu}_{\boldsymbol{r}}\): Krieger Dougherty Equation Viscosity Ratio (fraction)
Formula(s)
\[
\mu_{\mathrm{r}}=\left(1-\frac{\emptyset}{\emptyset_{\max }}\right)^{\left(-\mathrm{A} * \emptyset_{\max }\right)}
\]
Reference(s)
Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley & Sons, Chapter: 1, Page: 33.