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The effect of corrugated skins on aerodynamic performance

Friswell, Michael I.; Xia, Yuying; Bilgen, Onur

Authors

Michael I. Friswell

Onur Bilgen



Abstract

Corrugated skins provide a good solution to morphing wings due to their highly anisotropic behavior. If the low stiffness corrugation plane is aligned in the chordwise direction, the airfoil shape change is possible. In contrast to the traditional smooth skin of an airfoil, a corrugated skin influences both the local and global aerodynamics of a wing. The aim of this study is to investigate the effect of a corrugated skin on the global aerodynamics of an airfoil, particularly lift and drag characteristics. First, the aerodynamic analysis of a NACA 0012 airfoil with a smooth profile is conducted, both in the wind tunnel and by computational fluid dynamics, at different Reynolds numbers and compared to the data in the literature. The lift and drag coefficients at different angles of attack, between -10° and 10°, are considered. Next, two NACA 0012 airfoils with different sized corrugated profiles are investigated both experimentally and by numerical simulation. The effects of corrugation size and Reynolds number are analyzed and quantified relatively to the standard NACA0012 airfoil with a smooth skin. Preliminary numerical results are validated using the experimental data. © The Author(s) 2014.

Journal Article Type Article
Publication Date Jan 1, 2014
Journal Journal of Intelligent Material Systems and Structures
Print ISSN 1045-389X
Electronic ISSN 1530-8138
Publisher SAGE Publications
Peer Reviewed Peer Reviewed
Volume 25
Issue 7
Pages 786-794
APA6 Citation Friswell, M. I., Xia, Y., Bilgen, O., & Friswell, M. (2014). The effect of corrugated skins on aerodynamic performance. Journal of Intelligent Material Systems and Structures, 25(7), 786-794. https://doi.org/10.1177/1045389X14521874
DOI https://doi.org/10.1177/1045389X14521874
Keywords morphing, corrugated skin, bio-inspired
Publisher URL http://dx.doi.org/10.1177/1045389X14521874
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