# Three-dimensional instability of the flow around a rotating circular cylinder

@article{Pralits2013ThreedimensionalIO,
title={Three-dimensional instability of the flow around a rotating circular cylinder},
author={Jan Oscar Pralits and Flavio Giannetti and Luca Brandt},
journal={Journal of Fluid Mechanics},
year={2013},
volume={730},
pages={5 - 18}
}
• Published 30 July 2013
• Engineering, Physics
• Journal of Fluid Mechanics
Abstract The two-dimensional stationary flow past a rotating cylinder is investigated for both two- and three-dimensional perturbations. The instability mechanisms are analysed using linear stability analysis and the complete neutral curve is presented. It is shown that the first bifurcation in the case of the rotating cylinder occurs for stationary three-dimensional perturbations, confirming recent experiments. Interestingly, the critical Reynolds number at high rotation rates is lower than…

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