A Study of Enlarging Surge Margin and Optimization of Variable Geometry for Afterburning Turbofan Engines

WU Hu; LIAN Xiao-chun; SHEN Shao-ying

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A Study of Enlarging Surge Margin and Optimization of Variable Geometry for Afterburning Turbofan Engines

更新时间：2026-07-07

- A Study of Enlarging Surge Margin and Optimization of Variable Geometry for Afterburning Turbofan Engines
- Vol. 16, Issue 4, (2001)
- 作者机构：
  
  西北工业大学七系,陕西,西安,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2001
- 稿件说明：
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WU Hu, LIAN Xiao-chun, SHEN Shao-ying. A Study of Enlarging Surge Margin and Optimization of Variable Geometry for Afterburning Turbofan Engines[J]. 2001, 16(4).
DOI：

WU Hu, LIAN Xiao-chun, SHEN Shao-ying. A Study of Enlarging Surge Margin and Optimization of Variable Geometry for Afterburning Turbofan Engines[J]. 2001, 16(4). DOI：

摘要

本文基于级特性和级叠积模型

发展了涡扇发动机风扇压气机导叶、静叶调节扩大发动机稳定裕度的计算模型

并将其与某型加力涡扇发动机共同工作计算模型相结合

建立了低函道比加力涡扇发动机风扇和压气机变几何调节扩稳的模拟方法及相应的计算模拟程序

并对发动机变几何的调节方案进行了初步的优化分析

结果表明合理的发动机变几何调节可使发动机性能和稳定裕度获得最佳匹配。

Abstract

A general model for predicting the thermodynamic performance of variable geometry axial compressors has been developed

based on stage-stacking model.The model is combined with the method

with which off-design operating points of gas turbine engines can be predicted.The simulation program is established for predicting variations in engine surge margins.An example on the use of the model and method is given to prove their validity.The optimization is obtained to predict the effects of combined variable geometry of fan inlet guide vane

mixer and nozzle area on the performances and surge margins of the engine.

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Related Institution

School of Energy and Power Engineering，Beihang University

National Key Laboratory of Science and Technology on Aero⁃Engine Aero⁃thermodynamics，Beihang University

Research Institute of Aero⁃Engine，Beihang University

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Aero Engine Academy of China，Aero Engine Corporation of China

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