Starting flow past an accelerating body in superfluid helium

• Thesis title in Czech: Počáteční proudění kolem tělesa zrychlujícího v supratekutém heliu
• Thesis title in English: Starting flow past an accelerating body in superfluid helium
• Key words: fyzika nízkých teplot|supratekutost|kvantová turbulence|mechanika tekutin|vizualizace proudění
• English key words: low temperature physics|superfluidity|quantum turbulence|fluid mechanics|flow visualization
• Academic year of topic announcement: 2022/2023
• Thesis type: diploma thesis
• Thesis language: angličtina
• Department: Department of Low Temperature Physics (32-KFNT)
• Supervisor: doc. Dr. Marco La Mantia, Ph.D.
• Author: hidden - assigned and confirmed by the Study Dept.
• Date of registration: 01.02.2023
• Date of assignment: 01.02.2023
• Confirmed by Study dept. on: 17.04.2024
• Date of electronic submission: 30.04.2024
• Opponents: Mgr. Tim Chagovets

Guidelines

The investigation of flows of superfluid helium-4 is an active and challenging research field. The work focuses on the experimental analysis of the starting vortex shed by a relatively large object accelerating from rest in this unique liquid. Comparisons with analogous flows of Newtonian fluids are specifically discussed. The study main aim is to contribute to our current understanding of the fluid behaviour in the proximity of solid boundaries, which is still largely unknown.

References

- O. Outrata et al. 2021 J. Fluid Mech. 924, A44
- S. Musser et al. 2019 Phys. Rev. Lett. 123, 154502
- P. Švančara et al. 2018 Phys. Rev. Fluids 3, 114701
- L. Xu, M. Nitsche 2015 Phys. Fluids 27, 033602