Quantum turbulence decay

Demosthenes Kivotides

doi:10.1016/j.physleta.2004.04.069

Quantum turbulence decay

Demosthenes Kivotides

Chemical And Process Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We develop a computational model of quantum turbulence decay employing a kinematic prescription for the normal fluid. We find that after an initial transient, the length of the vortex tangle L decreases and for large times obeys the scaling law L≈t^-0.45. The average magnitude (along the quantized vortices) of the superfluid and line-vortex velocity are close and differ significantly from the average magnitude of the normal fluid velocity.

Original language	English
Pages (from-to)	423-428
Number of pages	6
Journal	Physics Letters A
Volume	326
Issue number	5-6
DOIs	https://doi.org/10.1016/j.physleta.2004.04.069
Publication status	Published - 14 Jun 2004

Keywords

decay
quantum fluids
turbulence
superfluid

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10.1016/j.physleta.2004.04.069

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abstract = "We develop a computational model of quantum turbulence decay employing a kinematic prescription for the normal fluid. We find that after an initial transient, the length of the vortex tangle L decreases and for large times obeys the scaling law L≈t-0.45. The average magnitude (along the quantized vortices) of the superfluid and line-vortex velocity are close and differ significantly from the average magnitude of the normal fluid velocity.",

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AB - We develop a computational model of quantum turbulence decay employing a kinematic prescription for the normal fluid. We find that after an initial transient, the length of the vortex tangle L decreases and for large times obeys the scaling law L≈t-0.45. The average magnitude (along the quantized vortices) of the superfluid and line-vortex velocity are close and differ significantly from the average magnitude of the normal fluid velocity.

KW - decay

KW - quantum fluids

KW - turbulence

KW - superfluid

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DO - 10.1016/j.physleta.2004.04.069

M3 - Article

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SN - 0375-9601

VL - 326

SP - 423

EP - 428

JO - Physics Letters A

JF - Physics Letters A

IS - 5-6

ER -

Quantum turbulence decay

Abstract

Keywords

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