title: 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.
authors.affiliation: School of Mathematics and Statistics, University of Glasgow, Glasgow G12 8QW, United Kingdom.
authors.forename: Andrew W
authors.initials: AW
authors.lastname: Baggaley
authors.affiliation: Joint Quantum Centre Durham-Newcastle, School of Mathematics and Statistics, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom.
authors.forename: Carlo F
authors.initials: CF
authors.lastname: Barenghi