Velocity Distributions of Tracer Particles in Thermal Counterflow in Superfluid ${}^4$He

Abstract

Quantum turbulence accompanying thermal counterflow in superfluid ${}^4$He was recently visualized by the Maryland group, using micron-sized tracer particles of solid hydrogen (J. Phys. Soc. Jpn. {\bf 77}, 111007 (2008)) . In order to understand the observations we formulate the coupled dynamics of fine particles and quantized vortices, in the presence of a relative motion of the normal and superfluid components. Numerical simulations based on this formulation are shown to agree reasonably well with experimental observations of the velocity distributions of the tracer particles in thermal counterflow.

References in corpus (3)

• Visualization study of counterflow in superfluid helium-4 using metastable helium molecules
• Visualization of Superfluid Helium Flow
• Quantum Turbulence

Cited by in corpus (10)

• An exploration of thermal counterflow in He II using particle tracking velocimetry
• Sticking Transition in a Minimal Model for the Collisions of Active Particles in Quantum Fluids
• Characterizing vortex tangle properties in steady-state He II counterflow using particle tracking velocimetry
• Dynamics of the vortex-particle complexes bound to the free surface of superfluid helium
• Turbulence in quantum fluids
• Direct excitation of Kelvin waves on quantized vortices
• Backreaction of tracer particles on vortex tangle in helium II counterflow
• Active and finite-size particles in decaying quantum turbulence at low temperature
• Dynamics of fine particles due to quantized vortices on the surface of superfluid ${}^4$He
• Studies on quantum turbulence with Vinen