Containing liquid helium in it's superfluid state is of course known to be problematic. Escape by crawling up container walls to 'leak' through solid containers and similar difficulties being a concern.
How would superfluid helium respond to an ultrasonic barrier reinforcing the surface of a container, or perhaps simply a vibrating container?
In a broader statement of the question, I am curious of superfluid response, if any, to kinetic energy in the system. I have in general wondered, do the waves even interact without a fluid being viscous?