Aerodynamic characteristic of the continuous morphing trailing edge

Pyae Su; Eun Jung Chae

doi:10.1117/12.2514346

21 March 2019 Aerodynamic characteristic of the continuous morphing trailing edge

Pyae Su, Eun Jung Chae

Proceedings Volume 10967, Active and Passive Smart Structures and Integrated Systems XIII; 109670W (2019) https://doi.org/10.1117/12.2514346
Event: SPIE Smart Structures + Nondestructive Evaluation, 2019, Denver, Colorado, United States

Abstract

An existing morphing wing design, known as the Spanwise Morphing Trailing Edge (SMTE) actuated by bending the integrated Macro Fiber Composites (MFCs), is considered to generate spanwise positive and negative absolute valued sinusoidal variations along the trailing edge of the morphing wing. Note that this research is an extension of previous studies on SMTE morphing wing design where the deformation of the trailing edge is parameterized as a function of spanwise location using a simple sinusoidal relationship. A comparative aerodynamic study of the morphing geometries by varying the spatial frequency (i.e., number of waves along the span) and the phase shift (i.e., wave shape along the span) at the pre-stall condition is conducted through numerical computational fluid dynamic (CFD) simulations. The results show that high spatial frequencies generate vortices along the wingspan, which significantly increases the drag of the wing. These results further show that the SMTE morphing geometries of high aerodynamics performance lie in the region of low spatial frequency independent of the angle of attack.

Citation Download Citation

Pyae Su and Eun Jung Chae "Aerodynamic characteristic of the continuous morphing trailing edge", Proc. SPIE 10967, Active and Passive Smart Structures and Integrated Systems XIII, 109670W (21 March 2019); https://doi.org/10.1117/12.2514346

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