沈阳航空航天大学学报2025，Vol.42Issue(6)：38-45,8.DOI:10.3969/j.issn.2095-1248.2025.06.005
主流与二次流融合的航空发动机性能建模方法
A performance modeling method for aero-engine with primary and secondary flow integration
摘要
Abstract
To improve the calculation accuracy of the overall performance model,a overall performance modeling method for aero-engines with primary and secondary flow integration was investigated.Through research on principles for aero-engine performance calculation,the influencing factors of secondary flow on the primary flow thermodynamic cycle were comprehensively identified.Their mechanisms of action were clarified.A characteristic model of the impact of secondary flow on the primary flow thermodynamic cycle was constructed.Based on the traditional modeling framework,this method innovatively introduced a coupling calculation mechanism for secondary flow rate,energy,and mixing terms with the primary flow thermodynamic cycle.Using this method,an overall performance calculation model was developed for a specific aero-engine.The results show that,compared to traditional models,the proposed method achieves a 1.4%improvement in thrust calculation accuracy,a 1.33%enhancement in fuel consumption rate prediction,and a 2.7%increase in turbine inlet temperature estimation accuracy,significantly optimizing the precision of the overall performance calculation model for aero-engines.关键词
航空发动机/总体性能计算模型/二次流流动/耦合计算/主流热力循环Key words
aero-engine/overall performance calculation model/secondary flow/coupling calculation/mainstream thermodynamic cycle分类
航空航天引用本文复制引用
LI Jun,ZHAO Hongjiao,YAN Yujia..主流与二次流融合的航空发动机性能建模方法[J].沈阳航空航天大学学报,2025,42(6):38-45,8.基金项目
中国航发集团自主创新项目(项目编号:ZZCX-2024-003). （项目编号:ZZCX-2024-003）
