Turbulent superfluid profiles in a counterflow channel

TL;DR

This paper presents a two-dimensional model of quantised vortices in helium II under counterflow conditions, predicting superfluid and vortex-line density profiles that can be experimentally validated.

Contribution

It introduces a novel 2D modeling approach for quantised vortices in helium II counterflow, enabling predictions of vortex and superfluid profiles for experimental testing.

Findings

Predicted superfluid density profiles in counterflow channel

Predicted vortex-line density profiles

Model facilitates experimental validation of vortex behavior

Abstract

We have developed a two-dimensional model of quantised vortices in helium II moving under the influence of applied normal fluid and superfluid in a counterflow channel. We predict superfluid and vortex-line density profiles which could be experimentally tested using recently developed visualization techniques.