航空发动机性能与二次空气系统的耦合仿真模型

刘传凯; 姜宏超; 李艳茹; 李圆圆; 丁水汀

doi:10.13224/j.cnki.jasp.2017.07.012

航空发动机性能与二次空气系统的耦合仿真模型

doi: 10.13224/j.cnki.jasp.2017.07.012

1.
北京航空航天大学能源与动力工程学院航空发动机气动热力国家级重点实验室，北京 100191；先进航空发动机协同创新中心，北京 100191
2.
北京航空航天大学能源与动力工程学院航空发动机气动热力国家级重点实验室，北京 100191
3.
北京航空航天大学交通科学与工程学院，北京 100191

基金项目: 国防基础科研计划（B2120132006）；教育部长江学者创新团队“航空发动机复杂系统安全性”（IRT0905）

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出版历程
- 收稿日期: 2015-10-26
- 刊出日期: 2017-07-28

Coupled simulation model of aero-engine performance and secondary air system

摘要

摘要: 提出了一种航空发动机整机全流域零维仿真方法。该方法采用模块化建模的思想，集成并实现了发动机过渡态总体性能模型与空气系统模型之间的动态数据交互和耦合求解，基于面向对象的技术开发了模块化的仿真程序，以某涡扇发动机的核心机为对象建立了仿真算例，模拟并分析了过渡过程中空气系统各引气、汇流支路的动态变化及其对发动机总体性能参数的影响。结果表明：发动机主流道与内流空气系统的动态交互作用虽然并不会显著影响发动机过渡过程总体性能参数，但却足以造成空气系统各局部支路显著的非均衡响应，这是现代高性能航空发动机精细化设计中不应忽略的因素。
- 航空发动机 /
- 空气系统 /
- 瞬态 /
- 模块化建模 /
- 零维仿真
Abstract: An approach for zero-dimensional simulation of whole engine gas path was presented. By adopting modular modeling ideology, the transient engine performance model and air-system model were integrated and solved by means of dynamic data exchange. The corresponding modular simulation program was coded by utilizing object-oriented technology. A turbofan core engine was modeled to predict and analyze the dynamic changes of the air system bleeding and returning branches as well as their influences on the overall engine performance. Results show that the dynamic interaction between the main gas path and secondary air system exerts little influence on the overall performance of the aero-engine, but this influence is strong enough to cause significant imbalanced local responses of the secondary air system. This adverse impact should not be ignored in the design of modern high performance aero engine.
- aero-engine /
- air system /
- transient /
- modular modeling /
- zero-dimensional simulation

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参考文献(20)

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