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Observation of the turbulent flow in superfluid He-4 using a vibrating wire

Abstract:

We have investigated the laminar and the turbulent flow in superfluid 4He using a vibrating wire made from a thin NbTi wire (φ 2.5 μm). We measured vibrating velocity of the wire as a function of driving force at 1.4 K and found that the laminar and the turbulent flow around the wire are clearly separated at a critical velocity. This phenomenon suggests that expansion of vortices attached on the wire causes the turbulence and those sizes are limited to an order of microns even in the turbulen...

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Publication status:
Published

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Publisher copy:
10.1016/j.jpcs.2005.05.043

Authors


Nakagawa, H More by this author
Nakagawa, A More by this author
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Journal:
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volume:
66
Issue:
8-9
Pages:
1501-1505
Publication date:
2005
DOI:
ISSN:
0022-3697
URN:
uuid:3564d1c0-312a-4e5e-8ef8-6854be222f66
Source identifiers:
311627
Local pid:
pubs:311627
Language:
English

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