TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)
Online ISSN : 1880-0408
Print ISSN : 0389-2441
ISSN-L : 0389-2441
Flow Phenomena of Superfluid Helium through Porous-plug Phase Seoarator
Hirotaka NAKAIMasahide MURAKAMI
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1987 Volume 22 Issue 2 Pages 104-109

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Abstract
Measurements of temperature distribution inside porous-plugs were carried out to understand actual flow phenomena inside plugs. It is found that He II flows ideally, i.e. the London equation is valid, through the most part of a plug. The flow of the normal component remains laminar under any experimental conditions. He II flow finally changes to vapor one in the downstream most part of a plug. Large drops in temperature and pressure across a plug are caused in the vapor flow region. A thermodynamic consideration of porous-plug phase separation is also presented.
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© Cryogenic Association of Japan
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