涡轮喷气发动机共同工作规律解析分析

AN ANALYTICAL STUDY OF COMPONENT MATCHING REGULARITY OF TURBOJET ENGINE

涡轮喷气发动机非设计状态下的许多现象都与共同工作时压气机前后各级攻角的变化有关。本文根据共同工作规律 ,推得了压气机前后各级攻角变化规律的简明解析公式。利用解析分析 ,系统地解释了一系列有关发动机特性的现象 ,清晰地说明了这些现象的物理本质 。

Many off-design condition phenomena of a turbojet engine are related with the variation of incidence angles at front and rear compressor stages.Based on the component matching regularity,the simple and clear analytical equations of the variation of incidence angles at front and rear compressor stages under engine operating conditions have been derived.With these analytical equations,a series of the off-design condition phenomena in a low or high design pressure ratio engines or in an ,axial,centrifugal or combined axial-centrifugal engines,all well as in a two-spool engines are analyzed systematically,their physical natures are clarified,and various off-design condition problems which may occur can be predicted in advance.