Optimization of cylinder flow control via zero net mass flux actuators
نویسندگان
چکیده
A direct search method in combination with a DNS/LES numerical approach is applied to optimize the control of the flow around a circular cylinder. The objective is the minimization of the drag coefficient and control is achieved via zero net mass flux actuators. The optimization process has been first evaluated and validated at Reynolds number 500 and then the more demanding flow at Reynolds number 3900 has been considered. The search of the optimum has been carried out in 2D simulations, and a 3D simulation indicating similar drag reduction, has been performed using the parameters of the 2D optimization.
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