Acceleration statistics in thermally driven superfluid turbulence

Abstract

New methods of flow visualization near absolute zero have opened the way to directly compare quantum turbulence (in superfluid helium) to classical turbulence (in ordinary fluids such as air or water) and explore analogies and differences. We present results of numerical simulations in which we examine the statistics of the superfluid acceleration in thermal counterflow. We find that, unlike the velocity, the acceleration obeys scaling laws similar to classical turbulence, in agreement with a recent quantum turbulence experiment of La Mantia et al.

5 pages, 5 figures, to appear in PRE

References in corpus (4)

• Emergence of turbulence in an oscillating Bose-Einstein condensate
• Multifractal statistics of Lagrangian velocity and acceleration in turbulence
• Characterization of reconnecting vortices in superfluid helium
• Velocity Statistics Distinguish Quantum Turbulence from Classical Turbulence

Cited by in corpus (1)

• Lagrangian quantum turbulence model based on alternating superfluid/ normal fluid stochastic dynamics