TITLE:
Aeroacoustic Investigation of Trailing-Edge Finlets
AUTHORS:
Yehia Salama, Joana Rocha
KEYWORDS:
Wind Tunnel Testing, Noise, Trailing Edges, Finlets, Airfoil Design
JOURNAL NAME:
Advances in Aerospace Science and Technology,
Vol.7 No.1,
January
29,
2022
ABSTRACT: Wind tunnel testing and embedded large eddy simulations are employed to study the noise reduction of trailing-edge finlets
on an airfoil. Trailing-edge finlets
are shown to increase the distance between the highly energetic fluid particles and the sharp trailing edge. Experiments were conducted at different angles of attack. Wind tunnel measurements confirm that finlets reduce the broadband noise radiated by the
airfoil. Results also reveal that the noise reduction of finlets is dependent on the airfoil angle of attack,
and that the highest noise reduction is obtained at the largest angle of
attack tested.