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Updated: Mar 29, 2026

Magnetically Induced Rotating Rayleigh-Taylor Instability
Published on: March 3, 2017
Rotating turbulence under "precession-like" perturbation
Kartik P Iyer1, Irene Mazzitelli2, Fabio Bonaccorso2
1University of Rome and INFN, 00133, Tor Vergata Rome, Italy. iyerpkartik@gmail.com.
Abstract:
The effects of changing the orientation of the rotation axis on homogeneous turbulence is considered. We perform direct numerical simulations on a periodic box of 1024(3) grid points, where the orientation of the rotation axis is changed (a) at a fixed time instant (b) regularly at time intervals commensurate with the rotation time scale. The former is characterized by a dominant inverse energy cascade whereas in the latter, the inverse cascade is stymied due to the recurrent changes in the rotation axis resulting in a strong forward energy transfer and large-scale structures that resemble those of isotropic turbulence.
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