J. Šimkanin from our Institute was invited to participate in a unique project DRESDYN, coordinated by F. Stefani and A. Giesecke from the German Helmholtz-Zentrum Dresden-Rossendorf. The project deals with a precession-driven (geo)dynamo experiment. J. Šimkanin has been involved in studies aiming at more precise specification of parameter ranges in which the occurrence of dynamo action is most likely. A large-scale water hydrodynamic experiment is scheduled in 2024, and a large-scale liquid sodium dynamo experiment in 2025.

The precession-driven dynamo experiment within the project DRESDYN (source: HZDR)

Link to the related papers:

http://doi.org/10.1088/1367-2630/ac3c0f
Pizzi F., Giesecke A., Šimkanin J., Stefani F. (2021): Prograde and retrograde precession of a fluid-filled cylinder, New J. Phys., 23, 123016

http://doi.org/10.1063/5.0134562
Kumar V., Pizzi F., Giesecke A., Šimkanin J., Kumar V., Gundrum T., Ratajczak M., Stefani F. (2023): The effect of nutation angle on the flow inside a precessing cylinder and its dynamo action, Phys. Fluids, 35, 014114

Ján Šimkanin