航空学报2025，Vol.46Issue(14)：61-76,16.DOI:10.7527/S1000-6893.2024.31436
含失稳模拟的高通流双变循环发动机动态模型
A high flux dual variable cycle engine model coupled with instability simulation
摘要
Abstract
The High Flow Dual Variable Cycle Engine(HFDVCE)achieves high performance by the aerodynamic and thermodynamic schemes such as synchronous combination of high flow rate,high throttle ratio,bypass ratio,and boost ratio regulation in the full speed range,as well as high turbine front temperature,meeting the requirements of low-speed economy and high-speed high thrust.Compared to conventional engines,HFDVCE has more prominent aerodynamic stability issues within the full range and mode switching.This article conducts research on the aerody-namic stability of HFDVCE,and proposes an HFDVCE model with instability simulation to address the lack of overall instability simulation and parameter mismatch between sub-models under multiple operating conditions.Firstly,a high-precision nonlinear model of the engine was established based on the component method to obtain the aerodynamic parameters of compression components.Then,a dynamic modeling method for aerodynamic instability of compres-sion components was proposed.By introducing a torque term to characterize the influence of rotational speed on the characteristics of the instability model,an instability model with two types of unstable conditions,stall and surge,was established to avoid the assumption of constant rotational speed and solve the problem of coefficient mismatch be-tween multiple instability sub-models.Furthermore,the coupling relationship between the instability model of compres-sion components and the nonlinear model of the engine was clarified.The impact of aerodynamic instability of the compression system on the overall performance of the engine was characterized by the instability coefficient,and an HFDVCE model with instability simulation was established to achieve dynamic simulation of overall instability.Finally,simulation experiments were conducted on four typical instability modes of HFDVCE,verifying the effectiveness of the model and providing a simulation platform for active stability control design.关键词
部件级模型/压气机失稳动力学/高通流双变循环发动机/失速与喘振/失稳模拟Key words
component level model/compressor instability dynamics/high flow dual variable cycle engine/stall and surge/instability simulation分类
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周晗,陈芊,汪虹余,史昊蓝,魏鹏轩,李嘉诚,张天宏,盛汉霖..含失稳模拟的高通流双变循环发动机动态模型[J].航空学报,2025,46(14):61-76,16.基金项目
航空发动机及燃气轮机基础科学中心重点项目(P2023-B-V-001-001) （P2023-B-V-001-001）
中国航空发动机产学研合作项目(HFZL2023CXY012) （HFZL2023CXY012）
国家自然科学基金面上项目(52176009) （52176009）
国家博士后创新人才支持计划项目(BX20240481) Science Center for Gas Turbine Project(P2023-B-V-001-001) （BX20240481）
Aviation Industry Corporation of China Industry-Academia-Research Cooperation Project(HFZL2023CXY012) （HFZL2023CXY012）
National Natural Science Foundation of China(52176009) （52176009）
Postdoctoral Innovation Talent Support Program of China(BX20240481) （BX20240481）
