Enhanced quasi-three-dimensional transient simulation technique incorporating component volume effects for aero engine

作     者：Yuchen DAI Manxiang SONG Donghai JIN Xingmin GUI 

作者机构：Aeroengine Simulation Research CenterSchool of Energy and Power EngineeringBeihang UniversityBeijing 100191China Jiangxi Research Institute of Beihang UniversityNanchang 330096China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2024年第37卷第12期

页      面：325-346页

核心收录：

学科分类：0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(No.52376021) 

主　　题：Engines Transient simulation Quasi-3D modeling Component volume effects Flow field evolution Transient performance analysis 

摘      要：Current transient analysis predominantly relies on zero-dimensional/one-dimensional tools,proficient at capturing aerothermodynamic variations across critical engine stations but insufficient for analyzing the internal flow field evolution during *** this gap,the study presents an enhanced quasi-three dimensional(quasi-3D)transient simulation technique that integrates component volume effects,offering a significant leap from the preceding quasi-3D transient simulation method based on quasi-steady *** embedding the component volume effects on density,momentum,and energy within the physical temporal dimension of the Navier-Stokes equations,the refined quasi-3D transient model achieves a closer representation of physical *** against a single-shaft turbofan engine’s experimental data confirms the model’s *** errors for key performance indicators,including shaft speed,thrust,mass flow rate,and critical component exit temperature and pressure,remain below 0.41%,5.69%,2.55%,3.18%and 0.67%,***,the model exposes a discernible temporal lag in the compressor outlet pressure and temperature response due to volume effects—previously unquantified in quasi-3D transient *** further exploration of the meridional flow field emphasizes the consequential role of volumes in transient flow field *** volume effects within quasi-3D transient simulations enhances engine modeling and is pivotal for precise transient analysis in engine design and optimization.