Saving Cad Parts as stp or igs Files

Depending on your Star CCM+ License, you may need to convert your CAD file to an STP or IGS file in order for it to be recognised.

To do this CATIA, open up your CATIA model and go on File, then save as.

Then in the drop down menu, on ‘Save as type’, choose either STP or IGS. There aren’t specific advantages over importing STP or IGS models into STAR CCM+, but STP is normally preferred.
Then click Save.