Volume 30 Issue 7
Jul.  2015
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DENG Jing-liang, CHU Wu-li, ZHANG Hao-guang. Stabilizing analysis of trapezoidal circumferential grooves on an axial rotor[J]. Journal of Aerospace Power, 2015, 30(7): 1721-1730. doi: 10.13224/j.cnki.jasp.2015.07.025
Citation: DENG Jing-liang, CHU Wu-li, ZHANG Hao-guang. Stabilizing analysis of trapezoidal circumferential grooves on an axial rotor[J]. Journal of Aerospace Power, 2015, 30(7): 1721-1730. doi: 10.13224/j.cnki.jasp.2015.07.025

Stabilizing analysis of trapezoidal circumferential grooves on an axial rotor

doi: 10.13224/j.cnki.jasp.2015.07.025
  • Received Date: 2014-03-03
  • Publish Date: 2015-07-28
  • In order to investigate the stabilizing effect of circumferential grooves in different meridional shapes, two trapezoidal grooves structures and an equal-width grooves structure were designed for the transonic rotor— Rotor 67.The numerical simulations showed that the composite stability margin of circumferential grooves in design speed was increased from 5.9% to more than 20%, and the normal trapezoidal grooves had best effect in the mall flow margin. The blade load distribution was improved, and the average work of the blade was increased too. Comparison of these various grooves shows that the upstream three grooves dominate the biggest contribution, and the normal trapezoidal one's relative contribution to stabilizing effect is the best.

     

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