Coupled Wakes of Cylinders

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Abstract
This paper is devoted to the experimental study and theoretical modeling of the coupled wakes of a pair of cylinders placed side by side in a constant flow. We propose here a dynamical system which models the behavior of these two coupled wakes. This model is constituted by two coupled Landau equations whose coefficients are estimated from experimental observations. A stability diagram is analytically and numerically computed. Finally, we present some new experiments which complete previous observations of locked and unlocked wakes.