Aerodynamic stability assessment of fan component running in turbofan engine

Zhan Xue Wang, Peng Wang, Wei Yang Qiao, Yuan Hu Cai

Research output: Contribution to journalArticlepeer-review

Abstract

A new model was presented for predicting of aerodynamic stability limit of compressor in turbofan engine. Firstly, a quasi one-dimensional, time dependent compression system model was used to model the dynamic flow in compressor and the actuator-lag-volume model was adopted to model the stage of compressor. Secondly, Lyapunov stability theory was used to identify the aerodynamic stability of compression component. Finally, this aerodynamic stability numerical model was coupled with steady state thermodynamic cycle model of turbofan for predicting of aerodynamic stability limit of compression component in turbofan engine environment. A turbofan engine with 3 stages fan and 5 stages compressor as an example was simulated. Numerical results show that the model presented in this paper is reasonable and reliable and can be used to predict aerodynamic stability limit of fan and compressor in real turbofan engine environment.

Original languageEnglish
Pages (from-to)577-582
Number of pages6
JournalHangkong Dongli Xuebao/Journal of Aerospace Power
Volume22
Issue number4
StatePublished - Apr 2007
Externally publishedYes

Keywords

  • Aerodynamic stability
  • Aerospace propulsion system
  • Compression component
  • Numerical model
  • Turbofan engine

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