Forum Moderator

I can't see the video, but no matter as I'm not supposed to open attachments either! 

If the components don't distort then moving mesh in Fluent can be used to push/pull components. As you want the component to move with pressure (as opposed to a pre-set motion speed) you'll need 6DOF (1DOF) to link pressure to motion. The region where the solid moves into/out of can be modelled using layering. Note, you cannot change topology so can't create or remove surfaces: it's explained in the Help and Tutorials in some detail.