Second sound propagation in laminar and turbulent superfluid 4He via extended thermodynamics

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Abstract

In this work, previous results on the complex propagation of second sound in laminar and turbulent superfluid 4He are reported. Furthermore the case of inhomogeneous superfluid turbulence is examined and, in particular, the wave propagation is investigated in the presence of an anisotropic vortex tangle. Two cases of physical interest are considered: wave front collinear and orthogonal to the heat flux.
Lingua originaleEnglish
pagine (da-a)295-307
Numero di pagine13
RivistaDefault journal
Volume3
Stato di pubblicazionePublished - 2012

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sound propagation
wave fronts
heat flux
wave propagation
turbulence
vortices
thermodynamics
propagation
acoustics

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title = "Second sound propagation in laminar and turbulent superfluid 4He via extended thermodynamics",
abstract = "In this work, previous results on the complex propagation of second sound in laminar and turbulent superfluid 4He are reported. Furthermore the case of inhomogeneous superfluid turbulence is examined and, in particular, the wave propagation is investigated in the presence of an anisotropic vortex tangle. Two cases of physical interest are considered: wave front collinear and orthogonal to the heat flux.",
keywords = "Superfluid turbulence, perturbation method, second sound",
author = "Lucia Ardizzone",
year = "2012",
language = "English",
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T1 - Second sound propagation in laminar and turbulent superfluid 4He via extended thermodynamics

AU - Ardizzone, Lucia

PY - 2012

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N2 - In this work, previous results on the complex propagation of second sound in laminar and turbulent superfluid 4He are reported. Furthermore the case of inhomogeneous superfluid turbulence is examined and, in particular, the wave propagation is investigated in the presence of an anisotropic vortex tangle. Two cases of physical interest are considered: wave front collinear and orthogonal to the heat flux.

AB - In this work, previous results on the complex propagation of second sound in laminar and turbulent superfluid 4He are reported. Furthermore the case of inhomogeneous superfluid turbulence is examined and, in particular, the wave propagation is investigated in the presence of an anisotropic vortex tangle. Two cases of physical interest are considered: wave front collinear and orthogonal to the heat flux.

KW - Superfluid turbulence

KW - perturbation method

KW - second sound

UR - http://hdl.handle.net/10447/64563

M3 - Article

VL - 3

SP - 295

EP - 307

JO - Default journal

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