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Dynamical Scaling of the Critical Velocity for the Onset of Turbulence in Oscillatory Superflows

Hänninen, R. ; Schoepe, Wilfried



Abstract

The critical velocity v(c) for the onset of turbulence in oscillatory flows of superfluid helium is known to depend on the oscillation frequency., namely v(c) similar to root kappa omega where kappa is the circulation quantum. Only the numerical prefactor may have some geometry dependence. This universal behaviour was described earlier qualitatively either by employing the superfluid Reynolds ...

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