Entropy production and heat flow in liquid He II

An analysis of the effect of mutual friction between normal fluid and super-fluid in the flow of liquid He II through narrow channels under large temperature gradients has been recently given by Craig, Keller, and Hammel. This analysis is based on the Gorter-Mellink thermohydrodynamical equations. T...

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Bibliographic Details
Published inAnnals of physics Vol. 23; no. 1; pp. 38 - 46
Main Author Oliphant, Thomas A
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.07.1963
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Summary:An analysis of the effect of mutual friction between normal fluid and super-fluid in the flow of liquid He II through narrow channels under large temperature gradients has been recently given by Craig, Keller, and Hammel. This analysis is based on the Gorter-Mellink thermohydrodynamical equations. The present paper presents an alternative treatment of the problem in which the conservation of entropy is introduced naturally into the theory at an early stage. The role played by entropy production in the processes involved in the thermohydrodynamics is thereby considerably clarified and a simple relation is given for an estimate of the relative importance of normal fluid (Rayleigh) dissipation and mutual friction (Gorter-Mellink) dissipation.
ISSN:0003-4916
1096-035X
DOI:10.1016/0003-4916(63)90252-5