Hello, I'm currently doing a project whose geometry is a small cube of air that contains a balloon made of a small plastic film of 2 mm thickness. The inside of the balloon is helium and I'm not being able to correctly mesh the geometry of the film.
I've tried to use different meshing operation and method such as sizing, Hex and lowering the Max Size Face. But I keep getting different warning which result in the film not being mesh. Do you know what should I do in my case?
PS: I attached some images about balloon geometry and the more common error. I' using Ansys 19, Student version.
Error: Patch-conforming tetrahedral mesh failed because of duplicated nodes in boundary mesh.