Thinning of a superfluid film in persistent flow

Thinning of a superfluid film in persistent flow

Persistent flow of a saturated helium film confined in an annular volume has been induced by rotation. Measurement of the change in film thickness when the flow is destroyed by a heat pulse showed good agreement with the Kontorovich prediction that the moving film is thinner, even after flow times o...

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Veröffentlicht in:J. Low Temp. Phys.; (United States) 1977-04, Vol.27 (1-2), p.177-186
1. Verfasser: Graham, G. M.
Format: Artikel
Sprache:eng
Schlagworte:
640450 - Fluid Physics- Superfluidity
ANNULAR SPACE
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
CONFIGURATION
DIMENSIONS
EVEN-EVEN NUCLEI
FILM FLOW
FLUID FLOW
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
STABLE ISOTOPES
SUPERFLUIDITY
THICKNESS
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Beschreibung
Zusammenfassung:Persistent flow of a saturated helium film confined in an annular volume has been induced by rotation. Measurement of the change in film thickness when the flow is destroyed by a heat pulse showed good agreement with the Kontorovich prediction that the moving film is thinner, even after flow times of several hours. The cell geometry is such that any effect of the vapor on the thinning can be discounted.
ISSN:0022-2291
1573-7357
DOI:10.1007/BF00654644