Generation of superfluid vortex turbulence by high-amplitude second sound in sup 4 He

Journal Article · Thu Mar 01 00:00:00 EST 1990 · Journal of Low Temperature Physics; (USA)

DOI:https://doi.org/10.1007/BF00683316· OSTI ID:6784633

Kotsubo, V; Swift, G W ^[1]

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1. Los Alamos National Laboratory, NM (USA)

High-amplitude second sound in superfluid {sup 4}He is used to generate vortex turbulence. By the use of a novel resonator designed to avoid nonlinear effects, a steady-state ac counterflow field is produced with amplitudes high enough to generate the turbulent state. The transition to the turbulent state shows hysteresis similar to that observed in dc superflow measurements. Critical velocities were measured as a function of both temperature and frequency. The frequency dependence agrees with the predictions of dynamic scaling theory, and the temperature dependence is the same as that observed in dc counterflow experiments.

• OSTI ID: 6784633
• Journal Information: Journal of Low Temperature Physics; (USA), Vol. 78:5-6; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SUPERFLUIDITY
TURBULENCE
PRODUCTION
DATA ANALYSIS
EXPERIMENTAL DATA
FREQUENCY DEPENDENCE
HELIUM 4
MEASURING INSTRUMENTS
MEASURING METHODS
SECOND SOUND
TEMPERATURE DEPENDENCE
VORTEX FLOW
DATA
EVEN-EVEN NUCLEI
FLUID FLOW
HELIUM ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
NUCLEI
NUMERICAL DATA
STABLE ISOTOPES
640450* - Fluid Physics- Superfluidity