某型发动机进口压力畸变实验研究与分析

Experimental investigation and analysis of an engine inlet pressue distortion

发动机进口流场畸变是影响发动机稳定性的一个很关键的降稳因子,而进口压力场周向分布不均匀对燃气涡轮发动机的稳定工作范围有很大影响。通过对某型涡喷发动机进行进口压力畸变模拟实验,探讨了发动机进口流场压力畸变的实验程序和方法,通过对实验数据的分析和处理,确定了该型发动机的稳定性对进气压力畸变的敏感程度。

Inlet pressure distortion is one of important factor that makes the engineworking instability, and asymmetrical distributing of liquid in circle orientation has a great effect on engine stable work range. In this paper, some experiment processes and methods through a engine inlet pressure distortion experiment are dis- cussed. Also, by analysing the experiment data, the pressure distortion sensitivity to stability of this kind of engine is studied.