[yahya]

How to subtract a surface body that lies inside a solid body from the whole solid body..when I try to do this I get the following error: "Error: Operation would result in non-manifold bodies."

Any suggestions?

[yahya]

any help guys?

[jrunsten]

Well, a surface body has no volume, so you aren't really subtracting anything. More information might help us help you

[diamondx]

with easy geometries you can try surface from edge or face (i don't remember if face exists...) and then i sew these surfaces together. i have never tried that on round geometries like a sphere tough...

[diamondx]

here something you can also do, it worked for me once, export your geometry in STEP file.
open it in ICEM CFD, export it again, then import it in designmodeler...