航空学报2025，Vol.46Issue(2)：40-51,12.DOI:10.7527/S1000-6893.2024.30425
开式转子气动噪声风洞试验
Aerodynamic noise test of open rotor in wind tunnel
摘要
Abstract
The open rotor has high propulsion efficiency and is an important development direction in the aero engine field.However,the aerodynamic interference of open rotor is complicated and the radiated aerodynamic noise is strong,making aerodynamic noise become a key problem in the development of open rotor engines.To evaluate the aerodynamic noise characteristics of the open rotor,verify the aerodynamic noise prediction method of the open rotor,and analyze the aerodynamic noise mechanism of the open rotor,the aerodynamic noise test of typical open rotor was carried out in the 5.5 m x 4 m acoustic wind tunnel by using a newly developed high-power open rotor dynamic simula-tion test device.The processing method of the wind tunnel test data of open rotor aerodynamic noise is established,the order decomposition method of open rotor aerodynamic noise is developed,and the characteristics and mecha-nism of open rotor aerodynamic noise are systematically studied.The results show that the separation error of different orders of tone for open rotor is less than 0.26 dB.The aerodynamic noise of open rotor is rich and obvious and covers a wide frequency range,with single frequency noise being the main noise source of open rotor.The total noise and single-frequency noise of the open rotor mainly propagate towards the radiation angle of 90o,the wide frequency noise mainly propagates towards the rear of the propeller plane,and the single tone of front propeller and rear propeller mainly propagate towards the radiation angle of 70°-110°.关键词
开式转子/气动噪声/风洞试验/声学风洞/阶次分解Key words
open rotor/aerodynamic noise/wind tunnel test/acoustic wind tunnel/order decomposition分类
航空航天引用本文复制引用
陈正武,姜裕标,卢翔宇,李抢斌..开式转子气动噪声风洞试验[J].航空学报,2025,46(2):40-51,12.基金项目
国家重点研发计划(2020YFA0405700) （2020YFA0405700）
国家级项目 National Key R&D Program of China(2020YFA0405700) （2020YFA0405700）
National Level Project （）
