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Recurring intense bursts of turbulence in rotating channel flow simulations
Large-scale instabilities occurring in the presence of small-scale turbulent fluctuations are frequently observed in geophysical or astrophysical contexts, but are difficult to reproduce in the laboratory. Thanks to the support of PRACE through a Tier-0 project and SNIC, we could carry out extensive simulations and observed for the first time intense recurrent bursts of turbulence in rotating channel flow. A simple model can predict some of the fundamental physics. Rotating channel flow is therefore suggested as a prototype for future studies of low-dimensional dynamics embedded in strongly turbulent environments.
• G. Brethouwer, P. Schlatter, Y. Duguet, D.S. Henningson, A.V. Johansson (2014) "Recurrent bursts via linear processes in turbulent environments." Phys. Rev. Lett., in press.