Proceedings of the 54th International Congress and Exposition on Noise Control Engineering

PREDICTING BROADBAND ROTOR NOISE UNDER TURBULENCE INGESTIONS

Published in 25/09/2025 - ISBN: 978-65-272-1573-8

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Complete Paper Summary
Paper Title
PREDICTING BROADBAND ROTOR NOISE UNDER TURBULENCE INGESTIONS
Authors
  • HAN WU
  • Wangqiao Chen
  • Peng Zhou
  • Siyang Zhong
Modality
Onsite-Oral
Subject area
05.1. Rotor & Turbomachinery Noise
Publishing Date
25/09/2025
Country of Publishing
Brazil | Brasil
Language of Publishing
en-US
Paper Page
https://www.even3.com.br/anais/international-congress-exposition-noise-control-engineering/1074219-predicting-broadband-rotor-noise-under-turbulence-ingestions
ISBN
978-65-272-1573-8
Keywords
Aeroacoustics, rotor noise, rainfall impact
Summary
An efficient model is developed to predict the turbulence-ingesting rotor noise. The rotor aerodynamic variables are modeled by the blade element momentum theory, and the blade surface is discretized into various strips to compute the broadband noise generation, for which the Amiet’s model of turbulence-flat plate interaction is implemented. The Doppler correction is applied by considering the effect of the relative movement between the blade and background flow. The axial freestream condition is considered. To verify the prediction accuracy, we compare the prediction results with the anechoic wind tunnel measurements. The grid-generated isotropic turbulence is employed as input, and the broadband noise at various observers is compared. Good agreements are obtained. A parametric study is then conducted to investigate the effects of rotation rate, freestream velocity, and turbulence properties on broadband noise caused by turbulence ingestion. The dependence of these influential parameters on noise level is analyzed.
Title of the Event
Inter-Noise 2025
City of the Event
São Paulo
Title of the Proceedings of the event
Proceedings of the 54th International Congress and Exposition on Noise Control Engineering
Name of the Publisher
Even3
Means of Dissemination
Meio Digital

How to cite

WU, HAN et al.. PREDICTING BROADBAND ROTOR NOISE UNDER TURBULENCE INGESTIONS.. In: Proceedings of the 54th International Congress and Exposition on Noise Control Engineering. Anais...Sao Paulo(SP) WTC Events Center, 2025. Available in: https//www.even3.com.br/anais/international-congress-exposition-noise-control-engineering/1074219-PREDICTING-BROADBAND-ROTOR-NOISE-UNDER-TURBULENCE-INGESTIONS. Access in: 02/06/2026

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