Crossover from hydrodynamic to acoustic drag on quartz tuning forks in normal and superfluid He

DI Bradley, M Človečko, SN Fisher, D Garg… - Physical Review B …, 2012 - APS
We present measurements of the drag forces on quartz tuning forks oscillating at low
velocities in normal and superfluid 4 He. We have investigated the dissipative drag over a …

Flexural-Mode Piezoelectric Resonators: Structure, Performance, and Emerging Applications in Physical Sensing Technology, Micropower Systems, and Biomedicine

X Cai, Y Wang, Y Cao, W Yang, T ** of a Quartz Tuning Fork in Superfluid 3He-B at Low Temperatures
DI Bradley, P Crookston, SN Fisher, A Ganshin… - Journal of Low …, 2009 - Springer
We have measured the dam** on a quartz tuning fork in the B-phase of superfluid 3 He at
low temperatures, below 0.3 T c. We present extensive measurements of the velocity …

Probing quantum and classical turbulence analogy in von Kármán liquid helium, nitrogen, and water experiments

B Saint-Michel, E Herbert, J Salort, C Baudet… - Physics of …, 2014 - pubs.aip.org
We report measurements of the dissipation in the Superfluid helium high REynold number
von Kármán flow experiment for different forcing conditions. Statistically steady flows are …

Multiple critical velocities in oscillatory flow of superfluid due to quartz tuning forks

D Schmoranzer, MJ Jackson, V Tsepelin, M Poole… - Physical Review B, 2016 - APS
We report recent investigations into the transition to turbulence in superfluid He 4, realized
experimentally by measuring the drag forces acting on two custom-made quartz tuning forks …

Quantum turbulence generated by oscillating structures

WF Vinen, L Skrbek - … of the National Academy of Sciences, 2014 - National Acad Sciences
The paper summarizes important aspects of quantum turbulence that have been studied
successfully with oscillating structures. It describes why some aspects are proving hard to …

Dynamical similarity and instabilities in high-Stokes-number oscillatory flows of superfluid helium

D Schmoranzer, MJ Jackson, Š Midlik, M Skyba… - Physical Review B, 2019 - APS
We present a unified analysis of the drag forces acting on oscillating bodies submerged in
superfluid helium such as a vibrating wire resonator, tuning forks, a double-paddle oscillator …