On the application of a soft-vane cascade model in rotor-stator interaction noise prediction

被引：0
作者：
Shen Z. [1 ]
Zhu L. [2 ]
Wang X. [2 ]
Sun X. [1 ]
机构：
[1] School of Energy and Power Engineering, Beihang University, Beijing
[2] Research Institute of Aero-Engine, Beihang University
来源：
International Journal of Gas Turbine, Propulsion and Power Systems | 2024年 / 15卷 / 02期
关键词：
Aircraft engines - Bypass ratio - Cascades (fluid mechanics) - Noise abatement - Perforated plates - Three dimensional computer graphics;
D O I：
10.38036/jgpp.15.2_26
中图分类号：
学科分类号：
摘要：
Modern civil turbofan aero-engines are faced with the challenge of noise control in a shorter nacelle and a larger bypass ratio fan design. Accordingly, the concept of soft vanes, in which fan outlet guide vanes (OGV) are implemented with permeable surfaces, is proposed to further reduce the rotor-stator interaction noise in future aero-engines. A three-dimensional cascade model is used to study the noise reduction of perforations on OGVs under practical situations as an application of soft vanes. The effects of spanwise coupling of the unsteady loading are studied and comparisons are made between a fully coupled model and a decoupled situation. The noise reduction effects of a perforated-plate based soft vane design under practical background mean flow at different operating conditions are then estimated using an in-house impedance model that accounts for the tangential mean flow and other practical factors. ©2024 Zihan Shen, Lilang Zhu, Xiaoyu Wang and Xiaofeng Sun.
引用
收藏
页码：27 / 34
页数：7
相关论文
共 13 条
  • [1] Peake N., Parry A. B., Modern Challenges Facing Turbomachinery Aeroacoustics, Annual Review of Fluid Mechanics, 44, pp. 227-248, (2018)
  • [2] Hughes C, Gazzaniga L., Effect of Two Advanced Noise Reduction Technologies on the Aerodynamic Performance of an Ultra High Bypass Ratio Fan, Proceedings, 15th AIAA/CEAS Aeroacoustics Conference, (2009)
  • [3] Elliott D. M., Woodward R, Podboy G. G., Acoustic Performance of Novel Fan Noise Reduction Technologies for a High Bypass Model Turbofan at Simulated Flights Conditions, Proceedings, 15th AIAA/CEAS Aeroacoustics Conference, (2009)
  • [4] Jones M. G., Parrott T. L., Suliff D. L., Hughes C, Assessment of Soft Vane and Metal Foam Engine Noise Reduction Concepts, Proceedings, 15th AIAA/CEAS Aeroacoustics Conference, (2009)
  • [5] Jones M. G., Howerton B. M., Evaluation of Novel Liner Concepts for Fan and Airframe Noise Reduction, Proceedings, 22nd AIAA/CEAS Aeroacoustics Conference, (2016)
  • [6] Reba R. A., Morin B. L., The Gust Response of an Acoustically Treated Flat-Plate Cascade, Proceedings, 14th AIAA/CEAS Aeroacoustics Conference, (2008)
  • [7] Smith S N., Discrete frequency sound generation in axial flow turbomachines, (1972)
  • [8] Baddoo P. J., Ayton L. J., Acoustic scattering by cascades with complex boundary conditions: compliance, porosity and impedance, Journal of Fluid Mechanics, 898, (2020)
  • [9] Shen Z., Wang X., Sun Y., Zhang G., Sun X., Three-dimensional effects of cascade perforations on rotor–stator interaction noise, Journal of Fluid Mechanics, 952, (2022)
  • [10] Goldstein M. E., Aeroacoustics, (1976)
12