航空发动机部件和整机通流数值模拟研究  

Numerical Study on Throughflow Simulation of Components and Full Engine of Aero-Engine

作　　者：杨晨 吴虎[2] 杜娟[1] 张宏武[1] 杨金广 YANG Chen;WU Hu;DU Juan;ZHANG Hongwu;YANG Jinguang(Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China;School of Power and Energy,Northwestern Polytechnical University,Xi'an 710072,China;School of Energy and Power Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]中国科学院工程热物理研究所,北京100190 [2]西北工业大学动力与能源学院,西安710129 [3]大连理工大学能源与动力学院,大连116024

出　　处：《工程热物理学报》2023年第4期894-902,共9页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.51922098);国家重大科技专项(No.2017-II-0004-0017,No.J2019-II-0020-0041)。

摘　　要：针对航空发动机部件和整机,为实现快速准确的流场与性能分析,基于时间推进通流方法开展了相关研究,并开发了相应求解程序。以严格守恒型通流模型为基础,结合计算流体力学求解理论,依次进行了轴流、离心压气机、轴流涡轮部件仿真验证,并最终对一台微型涡喷发动机地面节流特性进行了整机数值仿真验证。结果表明,所发展通流仿真程序求解稳定,能够快速获得发动机各类部件及整机的子午流场及总体特性。其中,整机总体特性预测与实验偏差不大于7%,符合工程应用精度需求。For the aero-engine components and the full-engine,in order to achieve fast and accurate analysis of fow field and performance,relevant study was carried out based on the time-marching throughflow method,and a corresponding solution program was developed.On the basis of the strictly conservative throughfow model,integrated with the solution theory of computational fluid dynamics,simulation verifications of the axial and centrifugal fow compressors,and axial turbine has been implemented successively.Finally,further numerical simulation verification has been implemented for the full-engine of a micro turbo-engine in terms of its ground throttling characteristics.The results show that the developed throughfow simulation program is stable in solution,and can quickly obtain the meridian fow field and the overall characteristics of different kinds of engine components,as well as the full-engine.Among them,the deviation between the prediction of the overall characteristics and the experiment is less than 7%,which meets the accuracy requirements of the engineering applications.

关 键 词：时间推进 通流 航空发动机 部件 整机 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]