Abstract
Corrugated structures offer a potential solution for morphing wing
skin applications due to their anisotropic behaviour that allows
chordwise camber and length changes. Aerofoils with corrugated
skins in the aft 1/3 of the chordwise section have been studied experimentally
and computationally using various corrugation shapes and
forms (sinusoidal, trapezoidal and triangular) at different Reynolds
numbers. The study showed that the aerodynamic performance is
highly dependent on corrugation amplitude, wavelength, gradient
(combination of amplitude and wavelength) and Reynolds number.
Evidence is given highlighting that penalties for having a nonsmooth
surface in the aft 1/3 of the chordwise section of an aerofoil
can be eliminated for the lift curve slope and minimised for the zero
lift drag coefficient.
| Translated title of the contribution | Aerodynamic study of corrugated skins for morphing wing applications |
|---|---|
| Original language | English |
| Pages (from-to) | 237 - 244 |
| Number of pages | 8 |
| Journal | The Aeronautical Journal |
| Volume | 114 |
| Publication status | Published - Apr 2010 |