Thickness measurements of unsaturated superfluid /sup 4/He films under driven and persistent flow
Journal Article
·
· J. Low Temp. Phys.; (United States)
Third-sound techniques have been used to measure the thickness of an unsaturated superfluid /sup 4/He 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.
- Research Organization:
- Laboratory for Low Temperature Physics, Deparment of Physics and Astronomy, University of Massachusetts, Amherst, Massachusetts
- OSTI ID:
- 6498580
- Journal Information:
- J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 42:3; ISSN JLTPA
- Country of Publication:
- United States
- Language:
- English
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