[BuilttoSpill]

Hi everybody.
I've a little problem that is driving me mad.
I would like to simulate the following problem.I have a body and i would like to calcolate his aeroelastic function.So,what i need is to impose a vetical motion.
Because i have to solve the boundary layer(i'm using a k-omega turboulence model)i need to keep the mesh fine in the near wall region.
My idea was to keep the body in a box(zone 3),and move the box inside the zone 2.The zone 1 doesen't move.
The only thing that i don't understand is if in doing this i generate a fake inertial force inside my zone 3...
Is possible to solve the fluid in a reference sistem without this velocity for zone 3?

Thanks so much to anyone that give me some suggest.

Paul