On the Transition to Turbulence of Oscillatory Flow of Liquid Helium-4

TL;DR

This paper reviews key aspects of the transition from laminar to turbulent flow in oscillatory liquid helium-4, clarifying inaccuracies in recent studies.

Contribution

It provides a critical review of the transition to turbulence in oscillatory helium-4 flow, correcting misconceptions in recent literature.

Findings

Clarifies the nature of laminar-turbulence transition in oscillatory flow

Identifies inaccuracies in recent research on helium-4 turbulence

Summarizes central features of turbulence onset in oscillatory systems

Abstract

Oscillating solid bodies have frequently been used for studying the properties of normal and superfluid helium. In particular, the transition from laminar flow to turbulence has attracted much interest recently. The purpose of this note is to review several central features of this transition in oscillatory flow, which have been inaccurately formulated in some recent work.