Decaying and kicked turbulence in a shell model

Details Decaying and kicked turbulence in a shell model Decaying and kicked turbulence in a shell model

2000-12-06

arxiv.org/abs/nlin/0012008v1

Phys. Fluids 13, 2013-2018 (2001)

Nonlinear Sciences

Chaotic Dynamics

14 pages, 8 figures

Scientific paper

10.1063/1.1375146

Decaying and periodically kicked turbulence are analyzed within the GOY shell model, to allow for sufficiently large scaling regimes. Energy is transfered towards the small scales in intermittent bursts. Nevertheless, mean field arguments are sufficient to account for the ensemble averaged energy decay E(t) \~t^{-2} or the parameter dependences for the ensemble averaged total energy in the kicked case. Within numerical precision, the inertial subrange intermittency remains the same, whether the system is forced or decaying.

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