Using the Refutas Method for Dynamic Viscosity

This method becomes available when the Multi-Component Liquid model is included and density is calculated using the Volume Weighted Mixture method.

The kinematic viscosity ${\nu }_i$ of a multi-component liquid is calculated with the Refutas equation [reflink] as follows:

where $y_i$ is the mass fraction of the ith component of the mixture and $b_i$ is the viscous blending number of the ith component:

and ${\nu }_i$ is the kinematic viscosity of the ith component in units of centiStokes.