Abstract
Recent aircraft morphing program envisions an aircraft without conventional control surfaces. Instead of moving control surfaces, the vehicle control systems may be implemented with a combination of propulsive forces, micro-surface-effectors, and fluidic devices dynamically operated by an intelligent flight control system. In the present work, first of all, the accuracy of a high-order LES turbulent model, developed by the author is verified by applying it to predict the experimental drag and lift coefficient for (NACA4412) airfoil. Finally, the work described in this paper focused on the aerodynamic virtual shaping of an (NACA0012) symmetric airfoil at zero angle of attack, using only a thin jet without additional fixtures. The effects of virtual shaping are investigated systematically with jet actuation at different chord-wise locations, and different ratio of jet and free-stream velocity. The jet was used to alter the aerodynamic shape of a symmetric airfoil to enhance lift and/or to reduce drag.
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