Aerodynamic characteristics of the continuous twisting trailing edge

Pyae Su; Jose Mendoza; Duyen Nguyen; Eun Jung Chae

doi:10.1117/12.2558942

24 April 2020 Aerodynamic characteristics of the continuous twisting trailing edge

Pyae Su, Jose Mendoza, Duyen Nguyen, Eun Jung Chae

Proceedings Volume 11376, Active and Passive Smart Structures and Integrated Systems XIV; 1137617 (2020) https://doi.org/10.1117/12.2558942
Event: SPIE Smart Structures + Nondestructive Evaluation, 2020, Online Only

Abstract

In this research, the application of an existing morphing wing technology, known as the Spanwise Morphing Trailing Edge (SMTE), is investigated further to identify the optimal morphing geometries for a subsonic Reynolds number regime. The new morphing wing model considers generating a variety of n-th root function (e.g., square root) geometries along the spanwise trailing edge of the wing to provide optimal aerodynamic results. The degree of the root function, control deflection of the trailing edge, and the angle of attack are parameterized to investigate the detailed aerodynamic characteristics. This research was conducted numerically through Computational Fluid Dynamics (CFD) simulations. The CFD simulations are performed using the three-dimensional (3D) Reynolds-Average Navier-Stokes (RANS) equations with the k - ω Shear Stress Transport (SST) turbulence model. The results show that the aerodynamic performance improves as the n-th root function geometries approach to the shape of an elliptic curve, which is a special case of the square root function. The results also indicate that the wing geometries of lower control deflection are more beneficial than those of higher control deflection to generate the same amount of lift when the angle of attack can vary freely.

Citation Download Citation

Pyae Su, Jose Mendoza, Duyen Nguyen, and Eun Jung Chae "Aerodynamic characteristics of the continuous twisting trailing edge", Proc. SPIE 11376, Active and Passive Smart Structures and Integrated Systems XIV, 1137617 (24 April 2020); https://doi.org/10.1117/12.2558942

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