Flow of turbulent superfluid helium inside a porous medium

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Abstract

In the work a macroscopic model of inhomogeneous superfluidturbulence previously formulated is further developed toinvestigate the flow of superfluid helium inside a very thincapillary or a porous medium. A boundary condition is formulated,which is able to explain the reversible flow of helium inside thecapillary. Using this condition the propagation of harmonic wavesinside a porous medium is studied. It is shown that the modelallows the propagation of a wave in which in addition to thehydrodynamical fields (density and velocity) also the temperature,the heat flux and the vortex line density vibrate.
Lingua originaleEnglish
Titolo della pubblicazione ospiteBollettino di matematica pura e applicata. Volume II
Pagine135-145
Numero di pagine11
Stato di pubblicazionePublished - 2009

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Ardizzone, L., Mongiovi', M. S., & Gaeta, G. (2009). Flow of turbulent superfluid helium inside a porous medium. In Bollettino di matematica pura e applicata. Volume II (pagg. 135-145)