6533b82bfe1ef96bd128d5f3

RESEARCH PRODUCT

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

H. WiechertG. U. Schubert

subject

Physicsgeographygeography.geographical_feature_categoryLiquid heliumAcousticschemistry.chemical_elementAcoustic wavelaw.inventionPhysics::Fluid DynamicschemistrylawSpeed of soundBounded functionSecond soundSound (geography)HeliumCommunication channel

description

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.

yearjournalcountryeditionlanguage
1974-01-01
https://doi.org/10.1007/978-1-4684-7864-8_103