Particle concentration in quantum turbulence

Published in Physical Review Fluids

Particles concentrating in superfluid vortices.

Particles are today the main tool to study superfluid turbulence and visualize quantum vortices. This work studies the dynamics of inertial particles in finite-temperature quantum turbulence in the framework of the two-fluid Hall-Vinen-Bekarevich-Khalatnikov model. It is revealed that, at low temperatures, when the superfluid mass fraction is dominant, particles cluster on superfluid vortex filaments regardless of their physical properties as it is shown in the figure. Furthermore, under strong counterflow, the flow is dominated by quasi-two-dimensional large-scale structures that govern the spatial distribution of particles.

Juan Ignacio Polanco
Juan Ignacio Polanco
Postdoctoral researcher
Giorgio Krstulovic
Giorgio Krstulovic
Chargé de recherche CNRS

My research interests include classical and quantum turbulence, vortex dynamics and wave turbulence.