The Large scale instability in rotating fluid with small scale force

M. I. Kopp; A. V. Tur; V. V. Yanovsky

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arXiv · 1504.06953

The Large scale instability in rotating fluid with small scale force

M. I. Kopp·A. V. Tur·V. V. Yanovsky

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Abstract

In this paper, we find a new large scale instability displayed by a rotating flow in forced turbulence. The turbulence is generated by a small scale external force at low Reynolds number. The theory is built on the rigorous asymptotic method of multi-scale development. The nonlinear equations for the instability are obtained at the third order of the perturbation theory. In this article, we explain a detailed study of the nonlinear stage of the instability and generation vortex kinks.

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M. I. Kopp, A. V. Tur, V. V. Yanovsky. 2015-04-27. The Large scale instability in rotating fluid with small scale force. https://arxiv.org/abs/1504.06953

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