Healing and relaxation in flows of helium II-I. Generalization of landau's equations

R. N. Hills, P. H. Roberts

Research output: Contribution to journalArticle

Abstract

The Landau 2-fluid equations for the motion of helium II are often criticised on two grounds: they ignore healing of the wave function, and they require the superfluid percentage to change instantaneously when the thermodynamic state is altered. In 1970 Khalatnikov[4] proposed a way of incorporating relaxation effects associated with conversion between superfluid and normal fluid. Using this as our starting point and employing the techniques of modern continuum mechanics, we develop a thermodynamically acceptable generalization that incorporates both healing and relaxation phenomena. © 1977.

Original languageEnglish
Pages (from-to)305-316
Number of pages12
JournalInternational Journal of Engineering Science
Volume15
Issue number5
Publication statusPublished - 1977

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