publication . Article . Other literature type . 2016

Aerodynamic and aeroacoustic performance of airfoils with morphing structures

Qing Ai; Xavier Lachenal; Mahdi Azarpeyvand; Paul M. Weaver;
Open Access
  • Published: 01 Jul 2016 Journal: Wind Energy, volume 19, pages 1,325-1,339 (issn: 1095-4244, Copyright policy)
  • Publisher: Wiley
  • Country: United Kingdom
Abstract
<p>Aerodynamic and aeroacoustic performance of airfoils fitted with morphing trailing edges are investigated using a coupled structure/fluid/noise model. The control of the flow over the surface of an airfoil using shape optimization techniques can significantly improve the load distribution along the chord and span lengths whilst minimising noise generation. In this study, a NACA 63-418 airfoil is fitted with a morphing flap and various morphing profiles are considered with two features that distinguish them from conventional flaps: they are conformal and do not rely on conventional internal mechanisms. A novel design of a morphing flap using a zero Poisson's r...
Subjects
free text keywords: Renewable Energy, Sustainability and the Environment, Airfoil self-noise, Morphing trailing edge, Stiffness tailoring, Zero Poisson's ratio honeycomb core, Shape optimization, Morphing, Aerodynamics, Acoustics, Deflection (engineering), Bending stiffness, Trailing edge, Structural engineering, business.industry, business, Finite element method, Airfoil, Engineering
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