Rotating turbulence under “precession-like” perturbation

  title={Rotating turbulence under “precession-like” perturbation},
  author={Kartik P. Iyer and Irene M. Mazzitelli and Fabio Bonaccorso and Annick Pouquet and Luca Biferale},
  journal={The European Physical Journal E},
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 10243 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… 
5 Citations
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Steady flow in a rapidly rotating sphere with weak precession
  • S. Kida
  • Physics
    Journal of Fluid Mechanics
  • 2011
The flow field of an incompressible viscous fluid in a precessing sphere is investigated by the asymptotic analysis for large Reynolds numbers and small Poincaré numbers. The long-standing unsolved