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Simulation and control of three-dimensional wakes

Abstract : We illustrate the problem of wake optimization on two examples. In the first example, the destruction of trailing vortices, we show that stochastic optimization is a flexible tool to identify vortex systems enhancing natural instabilities. In the second example, the problem of drag reduction in a cylinder wake, a priori information on the flow dynamics is highly desirable and we give some preliminary results which should be useful to select the most efficient parameters in an optimization strategy based on differential rotation of the cylinder.
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Georges-Henri Cottet, Philippe Poncet. Simulation and control of three-dimensional wakes. Computers and Fluids, Elsevier, 2004, 33 (5-6), pp.697-713. ⟨10.1016/j.compfluid.2003.01.001⟩. ⟨hal-02010683⟩



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