航空发动机空气系统气源引气的研究进展

摘要

Air system is mainly used for cooling the engine hot components and cabin air conditioning, and supports the safe and reliable operation of aircraft engines. Air system is closely related to the aerodynamic performance of the com pressor because it changes the air flow within the compressor by extracting bleed air from the compressor. The flow rate of the air system keeps growing to meet the demand of multiple aircraft functions, various external environment and higher turbine inlet temperature. The growing flow rate of air system highlights the impact of air system on the compressor aerodynamic performance. The characteristics of the air system bleeding is analyzed, sums up the progress on the research of the inter-stage bleeding of the compressor both home and abroad is summed up, and the future de velopment and application of the air system bleeding research are explored.%空气系统对航空燃气涡轮发动机的安全和有效工作起着非常重要的作用。空气系统从压气机中引气，改变了压气机内部的流动，与压气机的气动性能有着密切的联系。随着飞机功能和外部环境的复杂多样以及发动机涡轮前温度的提高，空气系统的气流量不断增大。特殊的弓l气位置和不断增大的引气量使得空气系统引气对压气机气动性能的影响逐渐凸显。本文对空气系统各功能气源引气的特点进行深入分析，综述压气机中间级引气的国内外研究进展，展望空气系统气源引气研究的发展趋势和应用前景。