Synchronization in mean field dynamo models


Synchronization in mean field dynamo models

Giesecke, A.; Seilmayer, M.; Stefani, F.; Weier, T.

Synchronization is a fundamental phenomenon in nonlinear dynamical systems.
In my presentation I will refer to essential features of synchronized
systems with focus on a kinematic dynamo model driven by two
counter-rotating disks including weak periodic perturbations. Similar
concepts can be used to explain the behavior of triadic resonances in a
precession driven flow, which may be seen as a precursor for the
transition into a turbulent regime found at a critical precession ratio
in the DRESDYN water experiment. Finally, I show the connection to the
synchronized solar dynamo model presented by Frank Stefani, where the
magnetic field frequencies are determined by the tidal forces caused by
planets surrounding the sun.

Keywords: Dynamo; Synchronization

  • Lecture (Conference)
    Dynamo Thinkshop, 25.-26.12.2019, Rom, Italien

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