在进气道与发动机相容性方面反旋流措施的工程应用研究

A CRITERION FOR VALIDATION OF ENGINE/S-DUCT-INLET COMPATIBILITY

关键词:  航空发动机  进气道  旋涡  抑制  进气道－发动机匹配

Key words:  Aircraft engine  Inlet  Swirl  Suppressin  Inlet-Engine matching

摘要:

进气道旋流（Ｉｎｔａｋｓｗｉｒｌ）是进气道与发动机相容性的一个重大扰动参数。从飞机总体布局、发动机设计方面入手，研究了现存飞机对旋流的防止和反抗措施。新发现：低压压气机前面级静子叶片采取“端弯”技术措施，对提高发动机抗旋流扰动能力，降低对旋流扰动的敏感度十分有利，看好其工程应用前景。

Abstract:

Intake swirl is an essential disturbing parameter related to the compatibility between intake and engine. Anti-Swirl protection measures are researched for existent airplanes proceeding form airplane configration and engine design. It is discovered now that top-bent stator blades in front stage of low-pressure compressor are valuable to enhance the anti-swirl ability of engine and to reduce the sensibility to swirl disturbance, which would be applied in aeronautical engineering.