Volume 26 Issue 12
Dec.  2011
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Article Navigation >  Journal of Aerospace Power  > 2011  >  26(12): 2655-2660
JI Guo-jian, JI Hong-hu, HUANG Yun-xia, SHUAI Hai-shan, LU Hai-ying, WANG Hai. Experiment investigation of windage heating on straight-through labyrinth seals with honeycomb bush[J]. Journal of Aerospace Power, 2011, 26(12): 2655-2660.
Citation: JI Guo-jian, JI Hong-hu, HUANG Yun-xia, SHUAI Hai-shan, LU Hai-ying, WANG Hai. Experiment investigation of windage heating on straight-through labyrinth seals with honeycomb bush[J]. Journal of Aerospace Power, 2011, 26(12): 2655-2660.
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Experiment investigation of windage heating on straight-through labyrinth seals with honeycomb bush

  • 1.

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

  • 2.

    School of Petroleum Engineering, Changzhou University, Changzhou Jiangsu 213016, China

  • 3.

    Shenyang Aeroengine Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China

  • Received Date: 2011-09-09
  • Rev Recd Date: 2011-11-03
  • Publish Date: 2011-12-28
    Abstract
  • Experiment investigation of windage heat on straight tooth and slant tooth of labyrinth seals composed of three teeth and two cavities with honeycomb bush and smooth bush had been made to study the effect of rotating speed and the pressure ratio of inlet to outlet and structure of tooth and bush.The results show that the total temperature of leakage fluid caused by windage heat may be neglected at low rotor speed and is increased with the increasing rotation speed between 3000r/min and 6000r/min.The total temperature ratio of first tooth to all teeth is more than 50% with smooth bush and is only 20% with honeycomb bush under low pressure ratio and enhanced to 50% with the increase of the pressure ratio.The straight tooth show increased windage heat when compared to slant tooth with the same bush due to the larger extension length of seal surface curve.

     

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    • References(13)
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