Volume 28 Issue 7
Jul.  2013
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HUANG Wei, HUANG Xiang-hua. Post stall transient model for axial compressor with closed-coupled valve under non-constant speed condition[J]. Journal of Aerospace Power, 2013, 28(7): 1557-1563.
Citation: HUANG Wei, HUANG Xiang-hua. Post stall transient model for axial compressor with closed-coupled valve under non-constant speed condition[J]. Journal of Aerospace Power, 2013, 28(7): 1557-1563.

Post stall transient model for axial compressor with closed-coupled valve under non-constant speed condition

  • Received Date: 2012-05-12
  • Publish Date: 2013-07-28
  • To provide a verification platform for various active surge controllers,a new rotating stall and surge model for axial compressor was proposed.Based on Moore-Greitzer post stall transient model,influences of spool dynamics and higher harmonics of rotating stall waves were considered in the proposed new model.In addition,a closed-coupled valve was included in the model as an actuator.Several conclusions can be made from simulation results.Firstly,with the increasing of rotor speed,the instability behavior of compressor transforms from rotating stall to surge.Secondly,as an internal disturbance,the spool dynamic may lead to instability even under large throttle opening conditions.Finally,even the initial disturbance only includes the first harmonics,the higher harmonics may become strong and have a significant effect on the behavior of rotating stall.

     

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