Inverse cascade regime in shell models of two-dimensional turbulence.

@article{Gilbert2002InverseCR,
  title={Inverse cascade regime in shell models of two-dimensional turbulence.},
  author={Thomas Gilbert and Victor S. L’vov and Anna Pomyalov and Itamar Procaccia},
  journal={Physical review letters},
  year={2002},
  volume={89 7},
  pages={
          074501
        }
}
We consider shell models that display an inverse energy cascade similar to two-dimensional turbulence (together with a direct cascade of an enstrophylike invariant). Previous attempts to construct such models ended negatively, stating that shell models give rise to a "quasiequilibrium" situation with equipartition of the energy among the shells. We show analytically that the quasiequilibrium state predicts its own disappearance upon changing the model parameters in favor of the establishment of… 

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