Aeroacoustic Noise Prediction of Rotating Wings in Hover by CFD Method

Y. F. Bi, X. Zhao, X. K. Hu, M. H. Kang, R. Yao

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

This paper applies CFD/FW-H method to validate the aeroacoustic noise results of UH-1H model and three rotors with different tip shapes in hover. The numerical simulation applies sliding grid with IDDES turbulence model to predict pressure pulsation causing by the rotating of blades. Sound pressure spectrum and sound pressure level were obtained and validated with experimental results. Results are primarily anastomotic for pressure fluctuation and frequency spectrum with SPL absolute error in range -3.45~7.61 dB. It is found that rotor designed with swept and anhedral tip helps to increase the hovering efficiency and reduce noise to a certain extent.

源语言英语
主期刊名AIAA SciTech Forum and Exposition, 2023
出版商American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN(印刷版)9781624106996
DOI
出版状态已出版 - 2023
活动AIAA SciTech Forum and Exposition, 2023 - Orlando, 美国
期限: 23 1月 202327 1月 2023

出版系列

姓名AIAA SciTech Forum and Exposition, 2023

会议

会议AIAA SciTech Forum and Exposition, 2023
国家/地区美国
Orlando
时期23/01/2327/01/23

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