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Observation of acoustic turbulence in a system of nonlinear second sound waves in superfluid 4He.

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Observation of acoustic turbulence in a system of nonlinear second sound waves in superfluid 4He. / Ganshin, A. N.; Efimov, V. B.; Kolmakov, G. V. et al.
In: Low Temperature Physics, Vol. 34, 2008, p. 288-292.

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Ganshin AN, Efimov VB, Kolmakov GV, McClintock PVE, Mezhov-Deglin LP. Observation of acoustic turbulence in a system of nonlinear second sound waves in superfluid 4He. Low Temperature Physics. 2008;34:288-292. doi: 10.1063/1.2908894

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@article{19388b47164f42559a653d7005e31ffe,
title = "Observation of acoustic turbulence in a system of nonlinear second sound waves in superfluid 4He.",
abstract = "We discuss the results of recent studies of acoustic turbulence in a system of nonlinear second sound waves in a high-quality resonator filled with superfluid 4He. It was found that, when the driving amplitude was sufficiently increased, a steady-state direct wave cascade is formed involving a flux of energy towards high frequencies. The wave amplitude distribution follows a power law over a wide range of frequencies. Development of a decay instability at high driving amplitudes results in the formation of subharmonics of the driving frequency, and to a backflow of energy towards the low-frequency spectral domain, in addition to the direct cascade.",
keywords = "Superfluid helium, second sound, acoustic turbulence, Kolmogorov spectrum",
author = "Ganshin, {A. N.} and Efimov, {V. B.} and Kolmakov, {G. V.} and McClintock, {Peter V. E.} and Mezhov-Deglin, {L. P.}",
note = "{\textcopyright}2008 American Institute of Physics The published version will not be available for download until some time next year.",
year = "2008",
doi = "10.1063/1.2908894",
language = "English",
volume = "34",
pages = "288--292",
journal = "Low Temperature Physics",
issn = "1090-6517",
publisher = "AMER INST PHYSICS",

}

RIS

TY - JOUR

T1 - Observation of acoustic turbulence in a system of nonlinear second sound waves in superfluid 4He.

AU - Ganshin, A. N.

AU - Efimov, V. B.

AU - Kolmakov, G. V.

AU - McClintock, Peter V. E.

AU - Mezhov-Deglin, L. P.

N1 - ©2008 American Institute of Physics The published version will not be available for download until some time next year.

PY - 2008

Y1 - 2008

N2 - We discuss the results of recent studies of acoustic turbulence in a system of nonlinear second sound waves in a high-quality resonator filled with superfluid 4He. It was found that, when the driving amplitude was sufficiently increased, a steady-state direct wave cascade is formed involving a flux of energy towards high frequencies. The wave amplitude distribution follows a power law over a wide range of frequencies. Development of a decay instability at high driving amplitudes results in the formation of subharmonics of the driving frequency, and to a backflow of energy towards the low-frequency spectral domain, in addition to the direct cascade.

AB - We discuss the results of recent studies of acoustic turbulence in a system of nonlinear second sound waves in a high-quality resonator filled with superfluid 4He. It was found that, when the driving amplitude was sufficiently increased, a steady-state direct wave cascade is formed involving a flux of energy towards high frequencies. The wave amplitude distribution follows a power law over a wide range of frequencies. Development of a decay instability at high driving amplitudes results in the formation of subharmonics of the driving frequency, and to a backflow of energy towards the low-frequency spectral domain, in addition to the direct cascade.

KW - Superfluid helium

KW - second sound

KW - acoustic turbulence

KW - Kolmogorov spectrum

U2 - 10.1063/1.2908894

DO - 10.1063/1.2908894

M3 - Journal article

VL - 34

SP - 288

EP - 292

JO - Low Temperature Physics

JF - Low Temperature Physics

SN - 1090-6517

ER -