Counterflow-Induced Inverse Energy Cascade in Three-Dimensional Superfluid Turbulence

Abstract

Finite-temperature quantum turbulence is often described in terms of two immiscible fluids that can flow with a non-zero mean relative velocity. Such out-of-equilibrium state is known as counterflow superfluid turbulence. We report here the emergence of a counterflow-induced inverse energy cascade in three-dimensional superfluid flows by performing extensive numerical simulations of the Hall-Vinen-Bekarevich-Khalatnikov model. As the intensity of the mean counterflow is increased, an abrupt transition, from a fully three-dimensional turbulent flow to a quasi two-dimensional system exhibiting a split cascade, is observed. The findings of this work could motivate new experimental settings to study quasi two-dimensional superfluid turbulence in the bulk of three-dimensional experiments. They might also find applications beyond superfluids in systems described by more than one fluid component.

arXiv comment5 pages, 4 figures

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Cited by in corpus (5)

• Disentangling temperature and Reynolds number effects in quantum turbulence
• Vinen's latest thoughts on the "bump'' puzzle in decaying He II counterflow turbulence
• Inverse Energy Cascade in Turbulent Taylor-Couette Flows
• Theory of anisotropic superfluid He-4 counterflow turbulence
• Local energy density functional for superfluid Fermi gases from effective field theory