Volume 26 Issue 8
Aug.  2011
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XIE Fa, HUANG Yong, MIAO Hui, HU Bin. Effects of airflow split and primary holes arrangement on the lean blowout limits of a combustor with axial-radial swirl cup[J]. Journal of Aerospace Power, 2011, 26(8): 1756-1760.
Citation: XIE Fa, HUANG Yong, MIAO Hui, HU Bin. Effects of airflow split and primary holes arrangement on the lean blowout limits of a combustor with axial-radial swirl cup[J]. Journal of Aerospace Power, 2011, 26(8): 1756-1760.

Effects of airflow split and primary holes arrangement on the lean blowout limits of a combustor with axial-radial swirl cup

  • Received Date: 2010-07-25
  • Rev Recd Date: 2010-11-10
  • Publish Date: 2011-08-28
  • An experiment was conducted for studying the effect of the variations of dome air entry areas and the arrangements of primary holes on the lean blowout (LBO) limits of a single dome rectangular model combustor with axial-radial swirl cup.The experimental results show that the decrease of air entry areas of the primary axial-swirler and the increase of primary holes' number have great effect on the LBO limits of the combustors.Decreasing of air entry areas into the primary axial-swirler by 20% will improve the combustor lean blowout limits about 9.7%,and increase of the number of primary holes to 4 will improve the combustor lean blowout limits about 7.6%.Besides,increase of air entry areas into the primary axial-swirler by 20%,change of air entry areas into the secondary radial-swirler by 20% and change of the number of primary holes to 2 have little effect on the combustor LBO limits.

     

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