AmesimKnowledge

Absolute viscosity calculation

Case 1: P > Psat

All the air/gas is dissolved in the liquid, and then the fluid absolute viscosity is:

With elementary and advanced, the liquid absolute viscosity is a constant:

Equation 30: Case 1: absolute viscosity for elementary and advanced

With advanced using tables, the liquid absolute viscosity can be dependent of temperature:

Equation 31: Case 1: absolute viscosity for advanced using tables

Source: https://docs.sw.siemens.com/en-US/doc/254352342/PL20250521841123434.amesim_collection.TB117_FluidProperties/xid1848258 · retrieved 2026-07-17