Volume 30 Issue 5
May  2015
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QIN Hao, FU Zhen-bai, LIN Yu-zhen, LI Ji-bao. Liner structure optimization based on pressure oscillation in combustor[J]. Journal of Aerospace Power, 2015, 30(5): 1076-1083. doi: 10.13224/j.cnki.jasp.2015.05.007
Citation: QIN Hao, FU Zhen-bai, LIN Yu-zhen, LI Ji-bao. Liner structure optimization based on pressure oscillation in combustor[J]. Journal of Aerospace Power, 2015, 30(5): 1076-1083. doi: 10.13224/j.cnki.jasp.2015.05.007

Liner structure optimization based on pressure oscillation in combustor

doi: 10.13224/j.cnki.jasp.2015.05.007
  • Received Date: 2013-11-30
  • Publish Date: 2015-05-28
  • Pressure oscillation characteristics of combustor were tested and compared between double-plate liner and single liner, and the test results show that pressure oscillation amplitude of the former is minor under the same test conditions. Applicability of perforated resonators model based on superposition principle in analyzing pressure oscillation characteristics mentioned above was checked. After sensitivity analysis, liner structure improvements for decreasing pressure oscillation amplitude of combustor without changing cooling air allocation were investigated. Analysis results show that the hole number (or hole diameter) in linear wall is the key parameter in mitigating pressure oscillation in combustor in an engineering optimization way.

     

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