Absolute viscosity calculation
Case 3: PLvap < P < PHvap
The fluid is a mixture of liquid with viscosity µliq, free air/gas with constant viscosity µair and vapor with constant viscosity µvap.
We take a mean value for the fluid viscosity which is based on volumes as follows:
Using Equation 20, Equation 21 and Equation 22 we have
Source: https://docs.sw.siemens.com/en-US/doc/254352342/PL20250521841123434.amesim_collection.TB117_FluidProperties/xid1848260 · retrieved 2026-07-17