Federico Alzamora Previtali
Ansys Employee



you can directly enable tangential, radial and axial source terms in the 3D Fan Zone Dialog box 7.2. Cell Zone Conditions (ansys.com)

If enabling the Axial source term, you will need to additionally choose a method between Constant Pressure jump or read a Fan Curve (where the pressure rise/drop will be a function of the volumetric flow rate).