Competition between rotation and turbulence in superfluid He4
Tsunehiko Araki, Makoto Tsubota, Carlo F. Barenghi
Abstract
Two types of vortex states have been much studied in superfluid 4He. The first is the vortex array in a rotating container. The second is the vortex tangle in turbulent flow. An experiment attempt to combine these two states by rotating a counterflow was attempted years ago. The data suggest the existence of different flow regimes separated by instabilities, but a theoretical interpretation is still missing. We present work in which we use the vortex filament model to numerically investigate rotating counterflow. We show evidence of a new state of polarized turbulence.
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