Harmonically Forced and Synchronized Dynamos: Theory and Experiments

Explore a comprehensive lecture on harmonically forced and synchronized dynamos through theory and experimental findings presented at IPAM's Rotating Turbulence Workshop. Delve into the effects of tide-like forcings on Rayleigh-Bénard convection, examining how helicity oscillations synchronize with external forces. Discover a detailed solar dynamo model that explains various periodicities across different time scales, including how planetary tides from Venus, Earth, and Jupiter influence magneto-Rossby waves in the solar tachocline. Learn about the relationship between the 22.14-year Hale cycle and the Sun's 19.86-year periodic motion around the solar system's barycentre, and how these interactions may explain Gleissberg and Suess-de Vries cycles. Examine the current progress of the DRESDYN precession-driven dynamo experiment, investigating Milankovic cycles' influence on the geodynamo and spin-orbit coupling effects in solar dynamo modeling through combined numerical and experimental approaches.