Dynamics of quantum turbulence of different spectra

Walmsley, Paul and Zmeev, Dmitriy and Pakpour, Fatemeh and Golov, Andrei (2014) Dynamics of quantum turbulence of different spectra. Proceedings of the National Academy of Sciences of the United States of America, 111 (Supple). pp. 4691-4698. ISSN 0027-8424

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Abstract

Turbulence in a superfluid in the zero-temperature limit consists of a dynamic tangle of quantized vortex filaments. Different types of turbulence are possible depending on the level of correlations in the orientation of vortex lines. We provide an overview of turbulence in superfluid 4He with a particular focus on recent experiments probing the decay of turbulence in the zero-temperature regime below 0.5 K. We describe extensive measurements of the vortex line density during the free decay of different types of turbulence: ultraquantum and quasiclassical turbulence in both stationary and rotating containers. The observed decays and the effective dissipation as a function of temperature are compared with theoretical models and numerical simulations.

Item Type:
Journal Article
Journal or Publication Title:
Proceedings of the National Academy of Sciences of the United States of America
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1000
Subjects:
ID Code:
69071
Deposited By:
Deposited On:
02 Apr 2014 08:23
Refereed?:
Yes
Published?:
Published
Last Modified:
18 Nov 2020 12:22