Aeroacoustic Investigation of Trailing-Edge Finlets  

作　　者：Yehia Salama Joana Rocha Yehia Salama;Joana Rocha(Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, Canada)

机构地区：[1]Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, Canada

出　　处：《Advances in Aerospace Science and Technology》2022年第1期1-24,共24页航空科学与技术（英文）

摘　　要：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.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.

关 键 词：Wind Tunnel Testing Noise Trailing Edges Finlets Airfoil Design 

分 类 号：O35[理学—流体力学]