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Shear Flow and Kelvin-Helmholtz Instability in Superfluids

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Shear Flow and Kelvin-Helmholtz Instability in Superfluids. / Blaauwgeers, R.; Eltsov, V. B.; Eska, G. et al.
In: Physical review letters, Vol. 89, No. 15, 155301 , 20.09.2002.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Blaauwgeers, R, Eltsov, VB, Eska, G, Finne, AP, Haley, RP, Krusius, M, Ruohio, JJ, Skrbek, L & Volovik, GE 2002, 'Shear Flow and Kelvin-Helmholtz Instability in Superfluids', Physical review letters, vol. 89, no. 15, 155301 . https://doi.org/10.1103/PhysRevLett.89.155301

APA

Blaauwgeers, R., Eltsov, V. B., Eska, G., Finne, A. P., Haley, R. P., Krusius, M., Ruohio, J. J., Skrbek, L., & Volovik, G. E. (2002). Shear Flow and Kelvin-Helmholtz Instability in Superfluids. Physical review letters, 89(15), Article 155301 . https://doi.org/10.1103/PhysRevLett.89.155301

Vancouver

Blaauwgeers R, Eltsov VB, Eska G, Finne AP, Haley RP, Krusius M et al. Shear Flow and Kelvin-Helmholtz Instability in Superfluids. Physical review letters. 2002 Sept 20;89(15):155301 . doi: 10.1103/PhysRevLett.89.155301

Author

Blaauwgeers, R. ; Eltsov, V. B. ; Eska, G. et al. / Shear Flow and Kelvin-Helmholtz Instability in Superfluids. In: Physical review letters. 2002 ; Vol. 89, No. 15.

Bibtex

@article{5de97fdd294449539d7b43f10245d04b,
title = "Shear Flow and Kelvin-Helmholtz Instability in Superfluids",
abstract = "The first realization of instabilities in the shear flow between two superfluids is examined. The interface separating the A and B phases of superfluid 3He is magnetically stabilized. With uniform rotation we create a state with discontinuous tangential velocities at the interface, supported by the difference in quantized vorticity in the two phases. This state remains stable and nondissipative to high relative velocities, but finally undergoes an instability when an interfacial mode is excited and some vortices cross the phase boundary. The measured properties of the instability are consistent with the classic Kelvin-Helmholtz theory when modified for two-fluid hydrodynamics.",
keywords = "A-PHASE, B-PHASE, HE-3, TRANSITION, NUCLEATION, VORTEX",
author = "R. Blaauwgeers and Eltsov, {V. B.} and G. Eska and Finne, {A. P.} and Haley, {Richard P.} and M. Krusius and Ruohio, {J. J.} and L. Skrbek and Volovik, {G. E.}",
note = "First observation of the Helmholtz instability in a condensate interface, also providing a key technique used in later studies of superfluid turbulence in rotating cryostats. A Helsinki-Lancaster collaboration. Haley was an EU-funded visitor provided essential experimental expertise developed in Lancaster. 28 citations. RAE_import_type : Journal article RAE_uoa_type : Physics",
year = "2002",
month = sep,
day = "20",
doi = "10.1103/PhysRevLett.89.155301",
language = "English",
volume = "89",
journal = "Physical review letters",
publisher = "American Physical Society",
number = "15",

}

RIS

TY - JOUR

T1 - Shear Flow and Kelvin-Helmholtz Instability in Superfluids

AU - Blaauwgeers, R.

AU - Eltsov, V. B.

AU - Eska, G.

AU - Finne, A. P.

AU - Haley, Richard P.

AU - Krusius, M.

AU - Ruohio, J. J.

AU - Skrbek, L.

AU - Volovik, G. E.

N1 - First observation of the Helmholtz instability in a condensate interface, also providing a key technique used in later studies of superfluid turbulence in rotating cryostats. A Helsinki-Lancaster collaboration. Haley was an EU-funded visitor provided essential experimental expertise developed in Lancaster. 28 citations. RAE_import_type : Journal article RAE_uoa_type : Physics

PY - 2002/9/20

Y1 - 2002/9/20

N2 - The first realization of instabilities in the shear flow between two superfluids is examined. The interface separating the A and B phases of superfluid 3He is magnetically stabilized. With uniform rotation we create a state with discontinuous tangential velocities at the interface, supported by the difference in quantized vorticity in the two phases. This state remains stable and nondissipative to high relative velocities, but finally undergoes an instability when an interfacial mode is excited and some vortices cross the phase boundary. The measured properties of the instability are consistent with the classic Kelvin-Helmholtz theory when modified for two-fluid hydrodynamics.

AB - The first realization of instabilities in the shear flow between two superfluids is examined. The interface separating the A and B phases of superfluid 3He is magnetically stabilized. With uniform rotation we create a state with discontinuous tangential velocities at the interface, supported by the difference in quantized vorticity in the two phases. This state remains stable and nondissipative to high relative velocities, but finally undergoes an instability when an interfacial mode is excited and some vortices cross the phase boundary. The measured properties of the instability are consistent with the classic Kelvin-Helmholtz theory when modified for two-fluid hydrodynamics.

KW - A-PHASE

KW - B-PHASE

KW - HE-3

KW - TRANSITION

KW - NUCLEATION

KW - VORTEX

U2 - 10.1103/PhysRevLett.89.155301

DO - 10.1103/PhysRevLett.89.155301

M3 - Journal article

VL - 89

JO - Physical review letters

JF - Physical review letters

IS - 15

M1 - 155301

ER -