FLUENT provides several options for definition of the fluid viscosity:
Each of these input options and the governing physical models are detailed in this section. (User-defined functions are described in the separate UDF Manual.) In all cases, define the Viscosity in the Materials panel.
Viscosities are input as dynamic viscosity ( ) in units of kg/m-s in SI units or lb /ft-s in British units. FLUENT does not ask for input of the kinematic viscosity ( ).