Transition to Quantum Turbulence and Streamwise Inhomogeneity of Vortex Tangle in Thermal Counterflow

E. Varga; S. Babuin; Victor Lvov; Anna Pomyalov; L. Skrbek

doi:10.1007/s10909-016-1683-9

Transition to Quantum Turbulence and Streamwise Inhomogeneity of Vortex Tangle in Thermal Counterflow

E. Varga, S. Babuin, Victor Lvov, Anna Pomyalov, L. Skrbek

Department of Chemical and Biological Physics

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

8 Citations (Scopus)

Abstract

We report preliminary results of the complementary experimental and numerical studies on spatiotemporal tangle development and streamwise vortex line density (VLD) distribution in counterflowing ⁴He. The experiment is set up in a long square channel with VLD and local temperature measured in three streamwise locations. In the steady state, we observe nearly streamwise-homogeneous VLD. Experimental second-sound data as well as numerical data (vortex filament method in a long planar channel starting with seeding vortices localized in multiple locations) show that the initial build-up pattern of VLD displays complex features depending on the position in the channel, but some tangle properties appear uniform along its length.

Original language	English
Pages (from-to)	531-537
Number of pages	7
Journal	Journal of Low Temperature Physics
Volume	187
Issue number	5-6
DOIs	https://doi.org/10.1007/s10909-016-1683-9
Publication status	Published - 1 Jun 2017

Bibliographical note

This work is supported by the Czech Science Foundation under project GACR 203/14/02005S and by the European Community Framework Programme 7, EuHIT-European High-performance Infrastructures in Turbulence, Grant Agreement No. 312778.

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Atomic and Molecular Physics, and Optics
General Materials Science

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10.1007/s10909-016-1683-9

http://arxiv.org/abs/1609.01960Licence: Other

Cite this

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abstract = "We report preliminary results of the complementary experimental and numerical studies on spatiotemporal tangle development and streamwise vortex line density (VLD) distribution in counterflowing 4He. The experiment is set up in a long square channel with VLD and local temperature measured in three streamwise locations. In the steady state, we observe nearly streamwise-homogeneous VLD. Experimental second-sound data as well as numerical data (vortex filament method in a long planar channel starting with seeding vortices localized in multiple locations) show that the initial build-up pattern of VLD displays complex features depending on the position in the channel, but some tangle properties appear uniform along its length.",

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AU - Varga, E.

AU - Babuin, S.

AU - Lvov, Victor

AU - Pomyalov, Anna

AU - Skrbek, L.

N1 - This work is supported by the Czech Science Foundation under project GACR 203/14/02005S and by the European Community Framework Programme 7, EuHIT-European High-performance Infrastructures in Turbulence, Grant Agreement No. 312778.

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N2 - We report preliminary results of the complementary experimental and numerical studies on spatiotemporal tangle development and streamwise vortex line density (VLD) distribution in counterflowing 4He. The experiment is set up in a long square channel with VLD and local temperature measured in three streamwise locations. In the steady state, we observe nearly streamwise-homogeneous VLD. Experimental second-sound data as well as numerical data (vortex filament method in a long planar channel starting with seeding vortices localized in multiple locations) show that the initial build-up pattern of VLD displays complex features depending on the position in the channel, but some tangle properties appear uniform along its length.

AB - We report preliminary results of the complementary experimental and numerical studies on spatiotemporal tangle development and streamwise vortex line density (VLD) distribution in counterflowing 4He. The experiment is set up in a long square channel with VLD and local temperature measured in three streamwise locations. In the steady state, we observe nearly streamwise-homogeneous VLD. Experimental second-sound data as well as numerical data (vortex filament method in a long planar channel starting with seeding vortices localized in multiple locations) show that the initial build-up pattern of VLD displays complex features depending on the position in the channel, but some tangle properties appear uniform along its length.

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Transition to Quantum Turbulence and Streamwise Inhomogeneity of Vortex Tangle in Thermal Counterflow

Abstract

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