September 6, 2023 at 2:36 pm
Federico Alzamora Previtali
Subscriber

Fluent defines the Viscous resistance as 1/alpha, where alpha is the permeability [m^2]. You can define the viscous resistance of your porous medium in the cell zone conditions dialog box.

7.2.3.8 User Inputs for Porous Media (ansys.com)