Decay of counterflow He II turbulence in a finite channel: possibility of missing links between classical and quantum turbulence
Related Experiment Video
Updated: Aug 2, 2026

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics
Published on: August 27, 2013
L Skrbek1, A V Gordeev, F Soukup
1Joint Low Temperature Laboratory, Institute of Physics ASCR and Charles University, V Holesovickách 2, 180 00 Prague, Czech Republic.
Abstract:
Decay of He II counterflow turbulence generated by applying a heat pulse to the closed end of a circular channel is investigated using second sound attenuation. Several orders of magnitude of decaying vortex line density display various regimes, starting with the inverse time decay predicted by Vinen towards distinct classical t(-3/2) power law occurring after saturation of the energy containing length scale by the size of the channel. The decaying counterflow turbulence displays a surprisingly close resemblance to recently reported decaying grid turbulence in He II, and both of them appear closely linked to classical grid generated turbulence.
More Related Videos
11:00Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
Published on: July 19, 2016
11:03An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
Related Concept Videos
Laminar and Turbulent Flow
Bernoulli's Equation for Flow Along a Streamline
Irrotational Flow
Steady, Laminar Flow in Circular Tubes
Turbulent Flow
Uniform Depth Channel Flow