Synchronizing the helicity of Rayleigh–Bénard convection by a tide-like electromagnetic forcing

We present results on the synchronization of helicity in a liquid-metal Rayleigh–Bénard experiment under influence tide-like electromagnetic forcing with azimuthal wavenumber m = 2. show that for critical strength typical large-scale circulation cylindrical vessel aspect ratio unity is entrained by period forcing, leading to synchronized oscillations opposite signs two half-spaces. The obtained experimental are consistent and supported numerical simulations. A similar entrainment mechanism solar tachocline may be responsible astonishing dynamo 11.07-year triple synodic alignment cycle tidally dominant planets Venus, Earth, Jupiter.