Energy and angular momentum balance in wall-bounded quantum turbulence at very low temperatures

J. J. Hosio (), V. B. Eltsov, P. J. Heikkinen, R. Hänninen, M. Krusius and V. S. L’vov
Additional contact information
J. J. Hosio: O.V. Lounasmaa Laboratory, Aalto University, P.O. Box 15100, Espoo FI-00076 AALTO, Finland
V. B. Eltsov: O.V. Lounasmaa Laboratory, Aalto University, P.O. Box 15100, Espoo FI-00076 AALTO, Finland
P. J. Heikkinen: O.V. Lounasmaa Laboratory, Aalto University, P.O. Box 15100, Espoo FI-00076 AALTO, Finland
R. Hänninen: O.V. Lounasmaa Laboratory, Aalto University, P.O. Box 15100, Espoo FI-00076 AALTO, Finland
M. Krusius: O.V. Lounasmaa Laboratory, Aalto University, P.O. Box 15100, Espoo FI-00076 AALTO, Finland
V. S. L’vov: The Weizmann Institute of Science

Nature Communications, 2013, vol. 4, issue 1, 1-5

Abstract: Abstract A superfluid in the absence of a viscous normal component should be the best realization of an ideal inviscid Euler fluid. As expressed by d’Alembert’s famous paradox, an ideal fluid does not drag on bodies past which it flows, or in other words it does not exchange momentum with them. In addition, the flow of an ideal fluid does not dissipate kinetic energy. Here we study experimentally whether these properties apply to the flow of superfluid 3He-B in a rotating cylinder at low temperatures. It is found that ideal behaviour is broken by quantum turbulence, which leads to substantial energy dissipation, as was also observed earlier. Remarkably, the angular momentum exchange between the superfluid and its container approaches nearly ideal behaviour, as the drag almost disappears in the zero-temperature limit. Here the mismatch between energy and angular momentum transfer results in a new physical situation, with severe implications on the flow dynamics.

Date: 2013
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms2618 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms2618

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms2618

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().