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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Flow of He II due to an oscillating grid in the low-temperature limit.
AU - Nichol, H. A.
AU - Skrbek, L.
AU - Hendry, P. C.
AU - McClintock, Peter V. E.
PY - 2004/6
Y1 - 2004/6
N2 - The macroscopic flow properties of pure He II are probed in the limit of zero temperature using an oscillating grid. As the oscillation amplitude passes a first critical threshold, the resonant frequency starts decreasing but the flow remains nondissipative. Beyond a second critical amplitude, the flow undergoes a transition to turbulence and becomes dissipative. Nonlinearity and hysteresis observed between the thresholds are attributed to a boundary layer of quantized vortices.
AB - The macroscopic flow properties of pure He II are probed in the limit of zero temperature using an oscillating grid. As the oscillation amplitude passes a first critical threshold, the resonant frequency starts decreasing but the flow remains nondissipative. Beyond a second critical amplitude, the flow undergoes a transition to turbulence and becomes dissipative. Nonlinearity and hysteresis observed between the thresholds are attributed to a boundary layer of quantized vortices.
U2 - 10.1103/PhysRevLett.92.244501
DO - 10.1103/PhysRevLett.92.244501
M3 - Journal article
VL - 92
SP - 244501
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 24
ER -