Abstract
Numerical calculations of (finite temperature) superfluid vortex ring propagation against a particulate sheet show that the solid particle trajectories collapse to a very good approximation to the normal-fluid path lines. We propose an experiment in which, by measuring the solid particles' velocities, direct information about the instantaneous normal-fluid velocity values could be obtained.
| Original language | English |
|---|---|
| Article number | 215302 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 95 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - 17 Nov 2005 |
Keywords
- finite temperature
- normal-fluid velocity
- solid particle trajectories
- superfluids
- approximation theory
- fluid dynamics
- numerical methods
- thermal effects
- velocity measurement
- supercritical fluids