Abstract
Active control of separated flows is one of the most challenging tasks in fluid dynamics research. This paper reports preliminary results of our investigation of active control of boundary layer separation by m eans of independently deployed and dynamically contr olled micro actuated delta winglet . The winglet is simulated computationally in a specially designed wind tu nnel. Varying flow area causes a large reci rculation bubble on the lower flat wall of the tunnel . The winglet was positioned at the minimum area section and was actuated with a frequency of 1 rad/sec . The resulting flow is highly three -dimensional. Analysis of components of vorticity vector indicates that the winglet has a positive effect on the reci rculation zone. Further investigation is needed to determine the optimal usage of this separation control method .
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