Minimizing Induced Drag with Spanwise Blowing Variation on a Circulation-Controlled Wing.

The article investigates the twisteron and circulation-controlled (CC) wing technologies which could allow an aircraft to fly efficiently in both the high- and low-speed regimes. It describes a method for reducing the induced drag generated on a CC wing by varying the blowing along the span of the wing. Computational fluid dynamics (CFD) simulations of flows over CC airfoils and wings were performed.