[vietle]

I want to create a tube that will have the middle region act like a valve that I can open/close with a dynamic mesh to squeeze down the middle region

I want to define a motion for that middlebody in Fluent so that it moves away from the rest of the body

Because my geometry has 3 bodies (All fluid-zone) that overlap each other, I created the name for each face to make interface, but I found wall-shadow when defining BC in fluent, and I cannot change them to interface BC.

I tried another way by using ansys mesh but it got an "overlapping name selection" error

how do I fix this?

I have attached the geometry below
Screenshot 2024-04-04 151854.jpg