Skip to main content
Article
Thickness Measurements of Unsaturated Superfluid 4He films Under Driven and Persistent Flow
Journal of Low Temperature Physics (1981)
  • Robert Hallock, University of Massachusetts - Amherst
  • D. T Ekholm
Abstract
Third-sound techniques have been used to measure the thickness of an unsaturated superfluid 4He film as a function of flow velocity. Under the conditions of persistent flow the film thins according to the predictions of Kontorovich. In situations in which a heater is used to continuously drive a film current the measured thinning is in disagreement with the predictions of Kontorovich. A possible explanation for these results is presented. We conclude that the film thinning problem presents no fundamental discrepancy with the Bernoulli equation.
Disciplines
Publication Date
1981
Publisher Statement
DOI: 10.1007/BF00120210
Citation Information
Robert Hallock and D. T Ekholm. "Thickness Measurements of Unsaturated Superfluid 4He films Under Driven and Persistent Flow" Journal of Low Temperature Physics Vol. 42 (1981)
Available at: http://works.bepress.com/robert_hallock/49/