基于过程的发动机进气道防冰引气模型及其多维度耦合分析  

Process-based model of anti-icing bleeding air for engine inlet and its multi-dimensional coupling analysis

作　　者：魏佐君 任光明 李成 杨宇飞 WEI Zuojun;REN Guangming;LI Cheng;YANG Yufei(Shenzhen Key Laboratory of Wide-Speed-Range and Variable-Density Continuous Wind Tunnel,Southern University of Science and Technology,Shenzhen 518055,China;College of Engineering,Southern University of Science and Technology,Shenzhen 518055,China;AECC Hunan Aviation Powerplant Research Institute,Zhuzhou 412002,China)

机构地区：[1]南方科技大学深圳市宽速域变密度连续式风洞重点实验室,广东深圳518055 [2]南方科技大学工学院,广东深圳518055 [3]中国航发湖南动力机械研究所,湖南株洲412002

出　　处：《推进技术》2024年第11期40-47,共8页Journal of Propulsion Technology

基　　金：深圳市科技计划基础研究专项项目(JCYJ20200109141403840);深圳市科技计划平台和载体专项项目(ZDSYS20220527171405012);国家自然科学基金(52106045)。

摘　　要：进气道防冰引气及其影响的评估对于发动机的研制具有重要意义,但定引气比的经典引气模型对于非设计点的性能评估存在不合理性。本文建立了基于过程的进气道防冰引气模型,通过防冰阀模型、引气函数、换热模型,实现了对防冰引气系统的低维度建模;提出了进气道、压气机、引气系统的多维度耦合分析方法。结果表明,该引气模型的引气比和排气温度将随工作点调整而动态改变,压气机等转速线与表示定引气比的多条线相交,增压比越高引气比越大。The evaluation of anti-icing bleeding air for inlet and its influence is of great importance for the development of the engine.However,the classical bleeding air model with constant bleeding ratio is unreasonable to evaluate the performance at off-design points.A process-based model of anti-icing bleeding air for engine in⁃let is developed in this paper.By introducing anti-icing valve model,bleeding function and heat exchange mod⁃el,the reduced dimensional model of the anti-icing bleeding air system is realized.Based on this model,a fully coupling analysis method for inlet,compressor and bleeding air system is proposed.The results show that the bleeding ratio and exhaust temperature of this model will change dynamically with the adjustment of the operation point.The constant speed line of the compressor intersects with multiple lines representing the constant bleeding ratio.The higher the pressure ratio of compressor is,the larger the bleeding ratio is.

关 键 词：进气道防冰 防冰引气模型 多维度耦合 降维度模型 基于过程 

分 类 号：V231.1[航空宇航科学与技术—航空宇航推进理论与工程]