Trailing-Edge Noise Reduction using Porous Treatment and Surrogate-based Global Optimization
Abstract
Broadband noise reduction is a significant problem in aerospace and industrial applications. Specifically, the noise generated from the trailing edge of an airfoil poses a challenging problem with various proposed solutions. This study investigates the porous trailing edge treatment. We use surrogate-based gradient-free optimization and an empirical noise model to efficiently explore the design space and find the optimal porosity distribution. As a result, a predicted 8-10 dB reduction in the broadband 300-5000 Hz was achieved. Furthermore, the optimal design emphasizes the design space's complexity and global exploration's difficulty. Further, the optimal design presents a low porous solution while constituting significant noise reduction.
Cite
@article{arxiv.2301.13047,
title = {Trailing-Edge Noise Reduction using Porous Treatment and Surrogate-based Global Optimization},
author = {Jan Rottmayer and Emre Özkaya and Sutharsan Satcunanathan and Beckett Y. Zhou and Max Aehle and Nicolas R. Gauger and Matthias Meinke and Wolfgang Schröder and Shaun Pullin},
journal= {arXiv preprint arXiv:2301.13047},
year = {2023}
}
Comments
5 pages, 6 figures, added affiliation, fixed typos, homog. citation style