Anisotropy and drift of a vortex tangle in helium II

Journal Article · Thu Oct 01 04:00:00 EDT 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.36.5240· OSTI ID:6173141

Wang, R T; Swanson, C E; Donnelly, R J

We use combined second-sound attenuation and temperature-gradient measurements to determine the vortex line density, anisotropy, and the drift of the vortex tangle as a whole in counterflowing helium II from 1.27 to 2.10 K. We find a much higher probability for vortex lines in the tangle to be transverse to the flow than along the flow. We also find that, at least below 2.1 K, the vortex tangle drifts with the superfluid toward the heater.

• Research Organization: Department of Physics, University of Oregon, Eugene, Oregon 97403
• OSTI ID: 6173141
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 36:10; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
ATTENUATION
DENSITY
DIFFERENTIAL EQUATIONS
EQUATIONS
EQUATIONS OF MOTION
EVEN-EVEN NUCLEI
FLUIDS
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
QUANTUM FLUIDS
SECOND SOUND
STABLE ISOTOPES
TEMPERATURE GRADIENTS
ULTRALOW TEMPERATURE
VORTICES