### Abstract

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 |

### Fingerprint

### Keywords

- finite temperature
- normal-fluid velocity
- solid particle trajectories
- superfluids
- approximation theory
- fluid dynamics
- numerical methods
- thermal effects
- velocity measurement
- supercritical fluids

### Cite this

*Physical Review Letters*,

*95*(21), [215302]. https://doi.org/10.1103/PhysRevLett.95.215302

}

*Physical Review Letters*, vol. 95, no. 21, 215302. https://doi.org/10.1103/PhysRevLett.95.215302

**Measurement of the normal-fluid velocity in superfluids.** / Kivotides, Demosthenes; Barenghi, Carlo F.; Sergeev, Yuri A.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Measurement of the normal-fluid velocity in superfluids

AU - Kivotides, Demosthenes

AU - Barenghi, Carlo F.

AU - Sergeev, Yuri A.

PY - 2005/11/17

Y1 - 2005/11/17

N2 - 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.

AB - 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.

KW - finite temperature

KW - normal-fluid velocity

KW - solid particle trajectories

KW - superfluids

KW - approximation theory

KW - fluid dynamics

KW - numerical methods

KW - thermal effects

KW - velocity measurement

KW - supercritical fluids

UR - http://www.scopus.com/inward/record.url?scp=28844493008&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.95.215302

DO - 10.1103/PhysRevLett.95.215302

M3 - Article

VL - 95

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 21

M1 - 215302

ER -