涡扇发动机进气总压畸变试验动态总压紊流度计算分析  

The Dynamic Pressure Turbulence Calculation of a Turbofan Engine Total Pressure Distortion Test

作　　者：孔卫东[1] 李军[1] 吕建伟[1] 

机构地区：[1]空军工程大学工程学院推进系统实验室,陕西西安710038

出　　处：《燃气涡轮试验与研究》2004年第3期31-34,共4页Gas Turbine Experiment and Research

摘　　要：通过对某型涡扇发动机进气总压畸变流场动态总压紊流度的计算,得到了在改变采样频率以及设计不同的数字滤波器对动态总压紊流度计算的影响结果,为分析和处理动态数据提供了一种方法。Based on the data of a turbofan engine inlet total pressure distortion experiment, the methods to predict inlet dynamic pressure turbulence were studied. The influence on the calculation results by some main factors, such as sampling frequency, digital filter cut-off frequency and the calculation modes were analyzed and compared. This brings a method to analyze and process dynamic data.

关 键 词：涡轮风扇发动机 进气总压畸变 总压紊流度 计算分析 流场动态 航空发动机 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程] V235.13