Volume 22 Issue 9
Sep.  2007
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Article Navigation >  Journal of Aerospace Power  > 2007  >  22(9): 1475-1480
TU Bao-feng, HU Jun, WANG Yong-ming. Unsteady numerical analysis for casing treatment[J]. Journal of Aerospace Power, 2007, 22(9): 1475-1480.
Citation: TU Bao-feng, HU Jun, WANG Yong-ming. Unsteady numerical analysis for casing treatment[J]. Journal of Aerospace Power, 2007, 22(9): 1475-1480.
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Unsteady numerical analysis for casing treatment

  • College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

  • Received Date: 2006-08-14
  • Rev Recd Date: 2006-12-25
  • Publish Date: 2007-09-28
    Abstract
  • The improved effect of casing treatment in axial compressors was studied by using an unsteady simulation method.Numerical calculation was performed for the cavity casing treatment with oblique slots under one-rotor and one-stage environment as well as for axial slots casing treatment of Rotor 37.The influence of downstream stator upon casing treatment simulation was also analyzed.The results show that,this computation method could simulate unsteady casing treatment,but the casing treatment cannot extend the stall margin of a compressor until the dangerous section is near the tip of rotor blade.It's found that the real role of casing treatment cannot be manifested accurately under one-rotor environment,and the presence of downstream stator would change the dangerous section of upstream rotor.

     

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