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 - The generation of quantum turbulence in He-3-B by a vibrating grid at low temperatures.
AU - Bradley, D. Ian
AU - Fisher, Shaun N.
AU - Guénault, A.M.
AU - Haley, Richard P.
AU - Matthews, C. J.
AU - Pickett, George R.
AU - Tsepelin, Viktor
AU - Zaki, K.
PY - 2006/9/7
Y1 - 2006/9/7
N2 - We have measured the onset of quantum turbulence generated by a vibrating grid resonator in He-3-B. Our measurements were carried out in the low temperature regime where the normal fluid component is very dilute and can be described as a gas of ballistic quasiparticles. Consequently, the normal fluid component can not participate in turbulence generation. We have measured the onset of turbulence from the grid motion using two nearby vibrating wire resonators. The vibrating wires show a reduction in thermal quasiparticle damping due to Andreev reflection in the surrounding turbulent velocity field. Our measurements reveal a transition in the transient behavior of the onset of the vorticity signal at the vibrating wire resonators as a function of the grid velocity.
AB - We have measured the onset of quantum turbulence generated by a vibrating grid resonator in He-3-B. Our measurements were carried out in the low temperature regime where the normal fluid component is very dilute and can be described as a gas of ballistic quasiparticles. Consequently, the normal fluid component can not participate in turbulence generation. We have measured the onset of turbulence from the grid motion using two nearby vibrating wire resonators. The vibrating wires show a reduction in thermal quasiparticle damping due to Andreev reflection in the surrounding turbulent velocity field. Our measurements reveal a transition in the transient behavior of the onset of the vorticity signal at the vibrating wire resonators as a function of the grid velocity.
KW - superfluid
KW - Helium-3
KW - quantum turbulence
KW - ultralow temperature
U2 - 10.1063/1.2354656
DO - 10.1063/1.2354656
M3 - Journal article
VL - 850
SP - 173
EP - 174
JO - AIP Conference Proceedings
JF - AIP Conference Proceedings
SN - 0094-243X
ER -