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Data Acquisition Protocol for Determining Embedded Sensitivity Functions
Published on: April 20, 2016
A computational study of trailing edge noise suppression with embedded structural compliance
Irsalan Arif1, Randolph C K Leung1, Muhammad Rehan Naseer1
1Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, People's Republic of China irsalan.arif@connect.polyu.hk, mmrleung@polyu.edu.hk, rehan.naseer@connect.polyu.hk.
Abstract:
A unique concept for suppression of trailing edge noise scattering from a splitter plate in a low Reynolds number flow is proposed. The key idea of the concept is the adoption of a structural compliance system embedded with a finite number of elastic panels. Specific compliance system designs are devised for promotion of panel structural resonance that effectively absorbs broadband flow/acoustic fluctuation energy responsible for noise scattering. The concept is examined using high-fidelity direct aeroacoustic simulation together with spatiotemporal aeroacoustic-structural interaction analysis. The concept is confirmed feasible and outperforms many similar trailing edge noise reduction approaches reported in the literature.
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