Improving the UAS-S4 Ehecatl airfoil high angles-of-attack performance characteristics using a morphing wing approach

Sugar-Gabor, O, Simon, A, Koreanschi, A and Botez, RM 2016, 'Improving the UAS-S4 Ehecatl airfoil high angles-of-attack performance characteristics using a morphing wing approach' , Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 230 (1) , pp. 118-131.

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Abstract

In this paper, a morphing wing approach with a new methodology and its results for the high angles-of-attack optimization of the S4 unmanned aerial system airfoil are described. The boundary layer separation delay, coupled with an increase of the maximum lift coefficient, was achieved using an in-house optimization tool based on the artificial bee colony algorithm, coupled with the Broyden–Fletcher–Goldfarb–Shanno algorithm to provide a final refinement. The obtained results were validated with an advanced, multi-objective, commercially available optimizing tool. The aerodynamic calculations were performed using a two-dimensional linear panel method, coupled with an incompressible boundary layer model and a transition estimation criterion. For very small displacements of the airfoil surface, of less than 2.5 mm, lift coefficient increases of up to 18% together with relevant drag reductions have been achieved, successfully delaying separation for the high angles-of-attack range.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre (SIRC)
Journal or Publication Title: Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
Publisher: Sage
ISSN: 0954-4100
Related URLs:
Depositing User: O Sugar-Gabor
Date Deposited: 10 Mar 2017 11:36
Last Modified: 12 Sep 2017 23:16
URI: http://usir.salford.ac.uk/id/eprint/41516

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