Turbulent dynamics in rotating helium superfluids

V. B. Eltsov, R. de Graaf, R. Hänninen, M. Krusius, R. E. Solntsev, V. S. L'vov, A. I. Golov, P. M. Walmsley

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Abstract

    New techniques, both for generating and detecting turbulence in the helium superfluids 3He-B and 4He, have recently given insight in how turbulence is started, what the dissipation mechanisms are, and how turbulence decays when it appears as a transient state or when externally applied turbulent pumping is switched off. Important simplifications are obtained by using 3He-B as working fluid, where the highly viscous normal component is practically always in a state of laminar flow, or by cooling 4He to low temperatures where the normal fraction becomes vanishingly small. We describe recent studies from the low temperature regime, where mutual friction becomes small or practically vanishes. This allows us to elucidate the mechanisms at work in quantum turbulence on approaching the zero temperature limit. © 2009 Elsevier B.V.
    Original languageEnglish
    Title of host publicationProgress in Low Temperature Physics|Prog. Low Temp. Phys.
    Subtitle of host publicationQuantum Turbulence
    Place of PublicationAmsterdam
    PublisherElsevier BV
    Pages45-146
    Number of pages101
    Volume16
    DOIs
    Publication statusPublished - 2009

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