Volume 22 Issue 6
Jun.  2007
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Article Navigation >  Journal of Aerospace Power  > 2007  >  22(6): 961-966
ZHANG Hao-guang, CHU Wu-li, WU Yan-hui, DENG Wen-jian, ZHANG Xia. Mechanism of stall margin improvement associated with the blowing circumferential grooved casing treatment[J]. Journal of Aerospace Power, 2007, 22(6): 961-966.
Citation: ZHANG Hao-guang, CHU Wu-li, WU Yan-hui, DENG Wen-jian, ZHANG Xia. Mechanism of stall margin improvement associated with the blowing circumferential grooved casing treatment[J]. Journal of Aerospace Power, 2007, 22(6): 961-966.
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Mechanism of stall margin improvement associated with the blowing circumferential grooved casing treatment

  • School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China

  • Received Date: 2006-05-17
  • Rev Recd Date: 2006-10-18
  • Publish Date: 2007-06-28
    Abstract
  • Tangent blowing in the circumferential grooves has the effect of achieving broader stall margin in the previous experiments.Three-dimentional numerical simulation has been performed for a subsonic axial-flow compressor rotor both with the blowing circumferential grooved casing treatment and archetypal casing treatment.The calculated overall performance lines showed good agreement with the experiments.The mechanism was that the blowing circumferential grooved casing treatment can achieve broader safety margin and improve the efficiency compared with archetypal casing treatment.This conclusion was obtained by detailed analyzing the flow-field at the blade tip of two kinds of casing treatment.

     

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    • References(7)
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