Measurement of He II evaporation induced by impingement of a thermal pulse on a He II–vapor interface

Measurement of He II evaporation induced by impingement of a thermal pulse on a He II–vapor... The transient evaporation phenomenon in a pure superfluid helium (He II)–vapor system was experimentally studied. Evaporation is caused by the impingement of a second sound thermal pulse onto a He II–vapor interface. The resulting gas dynamic phenomena are visualized with the aid of a laser holographic interferometer, and are also measured with a pressure transducer and a superconductive temperature sensor. It is clearly seen in the interferograms that a clear shock wave is formed at the front of an evaporation wave. We obtained the condensation coefficient of He II as being 0.70 ± 0.05 in the temperature range between 2.04 K and 1.74 K by the comparison of the experimental data with the kinetic theory results. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Measurement of He II evaporation induced by impingement of a thermal pulse on a He II–vapor interface

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Publisher
Springer-Verlag
Copyright
Copyright © 2001 by Springer-Verlag Berlin Heidelberg
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s003480000153
Publisher site
See Article on Publisher Site

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