# How does superfluid helium interact with ultrasound?

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?

$$v = \sqrt{\frac{K}{\rho}}$$
where $K$ is the bulk modulus and $\rho$ is the density. The viscosity does not appear in this equation.
Apart from the dip at the $\lambda$-point there is nothing remarkable about this curve.