摘要
针对整机环境下压气机多级导叶调节规律选取的问题,开发面向对象、灵活建模的整机性能0D仿真程序,搭建多级压气机3D CFD仿真模型,集成建立整机0D-3D变维度耦合仿真模型并开展整机变维度耦合仿真方法研究,以E3大涵道比涡扇发动机及其10级高压压气机为对象进行了分析。结果表明:与基于经验关系的0D方法相比,变维度耦合仿真方法精度更高;基于特性修正方法的变维度仿真结果与初始特性图选取有关,由CFD计算得到的特性图,仅需3~7次迭代即可使折合流量、效率和导叶开度的相对误差收敛至0.2%以下,可更快、更准地获得收敛结果。
In order to address the issue of selecting adjustment laws for multistage compressor guide vane in the whole engine environment,an object-oriented and flexible modeling of zero-dimensional(0D)simulation program for whole-engine performance was developed.A three-dimensional(3D)computational fluid dynamics(CFD)simulation model for multistage compressors was constructed,and an integrated whole-engine 0D-3D zooming coupling simulation model was established to study the zooming coupling simulation method for the whole engine.The E3 high bypass ratio turbofan engine and its 10-stage high pressure compressor(HPC)were taken as the object and analyzed.The results show that the zooming coupling simulation method has higher accuracy compared with the empirical 0D method.The zooming technique based on the iterative coupling method is related to the selection of initial characteristic maps.The characteristic maps calculated by CFD only need 3-7 iterations to achieve a relative error below 0.2%for corrected mass flow,efficiency and guide vane opening,which can obtain convergence results faster and more accurately.
作者
刘良烨
伊卫林
LIU Liangye;YI Weilin(School of Mechanical Engineering,Beijing Institute of Technology,Beijing,China,Post Code:100081)
出处
《热能动力工程》
CAS
CSCD
北大核心
2024年第11期51-62,共12页
Journal of Engineering for Thermal Energy and Power
基金
国家自然科学基金(52176035)。
关键词
变维度
涡扇发动机
多级高压压气机
迭代耦合
导叶调节
总体性能仿真模型
zooming
turbo-fan engine
multi-stage HPC
iterative coupling
guide vane adjustment
integrated performance simulation model
