An experimental investigation of flow-induced noise mechanism of a flexible flat-plate trailing-edge
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Acoustics 2015 Hunter Valley 15-18 November 2015Abstract: The Trailing-Edge (TE) of aircraft wings generates significant noise which is problematic for communities. This paper investigates a possible noise reduction mechanism by using an airfoil with a flexible TE made from Nylon 6 material. Experiments were carried out in an Anechoic Wind Tunnel (AWT) at low-to-moderate Reynolds number 2.8 x 10,Re,4.3x10, based on the chord length. To this end, two different flexible TE models with different chord-wise lengths are studied and their results are compared with that obtained for the rigid TE models (made of aluminium) at different free-stream velocities.
The Trailing-Edge (TE) of aircraft wings generates significant noise which is problematic for communities. This paper investigates a possible noise reduction mechanism by using an airfoil with a flexible TE made from Nylon 6 material. Experiments were carried out in an Anechoic Wind Tunnel (AWT) at low-to-moderate Reynolds number 2.8 x 10,Re,4.3x10, based on the chord length. To this end, two different flexible TE models with different chord-wise lengths are studied and their results are compared with that obtained for the rigid TE models (made of aluminium) at different free-stream velocities.