3-part question, but I think it's simple enough...
- Does the tendency for cavitation in a fluid depend on its viscosity?
- If so what does this imply for superfluids, having 0 viscosity?
- And for that matter can bubbles even form due to cavitation in a superfluid (without breaking the superfluid state)?
Note re #3 - I am aware that the physical state must change for bubbles to form. What I am interested in is whether superfluids allow bubbles to form without destroying the state for the rest of the superfluid. That is, would a bubble (or I suppose impurity in the general) in a superfluid prevent superfluidity nearby, either as the result of the process that formed the bubble or from the presence of the bubble itself?