航空学报2025，Vol.46Issue(7)：81-92,12.DOI:10.7527/S1000-6893.2024.30884
风扇转静干涉纯音高精度数值模拟
High-precision numerical simulation of fan rotor-stator interaction pure tone
摘要
Abstract
The rotor-stator interaction pure tone is a major component of fan noise.A deep understanding of its gen-eration mechanism,and high-precision simulation and prediction are topics of mutual concern in both academia and in-dustry.The high-order spectral difference method is used to conduct high-precision numerical simulations of fan rotor-stator interaction pure tone.Compared with experimental results,the numerical simulations accurately predict the main mode components of the rotor-stator interaction pure tone.The sound power level errors for the first three Blade Pass-ing Frequency(BPF)dominant modes are-1.2,+0.8,-2.1 dB,respectively.Among all the"CUT-ON"modes within the first three BPFs,the proportion of modes with PWL error below 5 dB is 86%,35%,and 30%,respectively.Detailed analysis of the distribution of BPF noise sources on the stator surface reveals that the BPF noise sources are primarily concentrated at the leading-edge region of the stator,originating primarily from the interactions between rotor wake and blade tip leakage vortices with stator blades,as well as unsteady separation bubbles near the pressure side of the stator leading edge.关键词
转静干涉纯音/风扇噪声/谱差分方法/计算声学/数值模拟Key words
rotor-stator interaction pure tone/fan noise/spectral difference method/computational areoacoustics/numerical simulation分类
航空航天引用本文复制引用
张东飞,高军辉..风扇转静干涉纯音高精度数值模拟[J].航空学报,2025,46(7):81-92,12.基金项目
国家自然科学基金(51876003) （51876003）
国家科技重大专项(J2019-Ⅱ-0006-0026) （J2019-Ⅱ-0006-0026）
航空发动机及燃气轮机基础科学中心重大项目(P2022-A-Ⅱ-003-001) National Natural Science Foundation of China(51876003) （P2022-A-Ⅱ-003-001）
National Science and Technology Major Project(J2019-Ⅱ-0006-0026) （J2019-Ⅱ-0006-0026）
Science Center for Gas Turbine Project of China(P2022-A-Ⅱ-003-001) （P2022-A-Ⅱ-003-001）
