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dc.contributor.author
Zemma, Elisa María
dc.contributor.author
Luzuriaga, Javier
dc.date.available
2017-10-13T22:02:20Z
dc.date.issued
2013-01
dc.identifier.citation
Zemma, Elisa María; Luzuriaga, Javier; Turbulent flow around an oscillating body in superfluid helium: dissipation characteristics of the nonlinear regime; Springer; Journal of Low Temperature Physics; 172; 3-4; 1-2013; 256-265
dc.identifier.issn
0022-2291
dc.identifier.uri
http://hdl.handle.net/11336/26669
dc.description.abstract
By examining the resonance curves of an oscillator submerged in superfluid liquid helium, it is found that their shape is affected by two distinct dissipation regimes when the amplitude is large enough to generate turbulence in the liquid. In a resonance curve, the central part close to resonance, may be in a turbulent regime, but the response is of much lower amplitude away from the resonance frequency, so that the oscillation can still be in the linear regime for frequencies not exactly at resonance. This introduces an ambiguity in estimating the inverse quality factor Q − 1 of the oscillator. By analyzing experimental data we consider a way of matching the two ways of estimating Q − 1 and use the information to evaluate the frictional force as a function of velocity in a silicon paddle oscillator generating turbulence in the superfluid.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Quantum Fluids
dc.subject
Turbulence
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Superfluid Helium
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Nonlinear Oscillator
dc.subject.classification
Otras Ciencias Físicas
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Turbulent flow around an oscillating body in superfluid helium: dissipation characteristics of the nonlinear regime
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-09-11T13:59:53Z
dc.journal.volume
172
dc.journal.number
3-4
dc.journal.pagination
256-265
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Zemma, Elisa María. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Luzuriaga, Javier. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Journal of Low Temperature Physics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10909-013-0862-1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10909-013-0862-1#citeas
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