Boundary conditions on partial surfaces

Hi, I have a solid with multiple curved surfaces. I’d like to apply boundary conditions to only specific parts and not the entire surface. I attach a picture. Any suggestions? thanks!

Hi @luigi_barazzet!

I would suggest to use CAD software to apply explicit splitting in these areas of the model, feel free to use Onshape for this purpose. Of course you can use anything you want.

Jousef