Abstract: In order to evaluate the stability of turbofan engine running in the condition of entry pressure distortion, tests were carried out in test stand fitted with a distortion simulation plate to generate target distortion flow fields in engine entry. The maximum pressure distortion intensity that causes engine surge and engine performance loss was obtained.

Key words: Turbofan engine;Pressure distortion;Aerodynamic stability:Flow distortion test

摘要： 为了评定涡扇发动机在稳态工作时的抗压力畸变能力 ,采用可调畸变度的发动机进口压力畸变模拟器 ,在发动机地面静止试车台上进行了不同进气畸变度下的整机抗畸变试验 ,试验中获取了发动机重要参数随不同畸变度的变化数据 ,并得到了发动机能稳定工作的最大进气畸变度范围

关键词: 涡轮风扇发动机;压力畸变;气动稳定性;流场畸变试验