Aeroacoustic Noise Prediction of Rotating Wings in Hover by CFD Method

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationAIAA SciTech Forum and Exposition, 2023
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624106996
DOIs
StatePublished - 2023
EventAIAA SciTech Forum and Exposition, 2023 - Orlando, United States
Duration: 23 Jan 202327 Jan 2023

Publication series

NameAIAA SciTech Forum and Exposition, 2023

Conference

ConferenceAIAA SciTech Forum and Exposition, 2023
Country/TerritoryUnited States
CityOrlando
Period23/01/2327/01/23

Keywords

  • Aeroacoustic Noise
  • blade tip design
  • numerical simulation
  • rotating wing

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