Theoretical Studies of the Propagation of Sound in Channels Filled with Helium II

  • H. Wiechert
  • G. U. Schubert


The two-fluid nature of liquid helium II leads to the possibility of several types of wave motion, e.g., first sound, second sound, fourth sound, and the fifth wave mode. First and second sound appear in the bulk liquid. The characters of these wave modes alter materially if helium is bounded by solid walls, e.g., between two plane-parallel plates forming a channel. This paper reports upon the calculation of the properties of wave modes which can exist in such channels.


Wave Mode Wave Motion Thermal Wave Normal Fluid Channel Fill 
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Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • H. Wiechert
    • 1
  • G. U. Schubert
    • 1
  1. 1.Institut für PhysikJohannes Gutenberg UniversitätMainzGermany

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