Volume 30 Issue 4
Apr.  2015
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QIN Hao, DING Zhi-lei, LIN Yu-zhen, LI Ji-bao. Dynamic response characteristic of concentric stage swirling structure[J]. Journal of Aerospace Power, 2015, 30(4): 793-799. doi: 10.13224/j.cnki.jasp.2015.04.004
Citation: QIN Hao, DING Zhi-lei, LIN Yu-zhen, LI Ji-bao. Dynamic response characteristic of concentric stage swirling structure[J]. Journal of Aerospace Power, 2015, 30(4): 793-799. doi: 10.13224/j.cnki.jasp.2015.04.004

Dynamic response characteristic of concentric stage swirling structure

doi: 10.13224/j.cnki.jasp.2015.04.004
  • Received Date: 2013-11-05
  • Publish Date: 2015-04-28
  • The natural flow characteristics and their response to outer excitations of a LESS (low emissions with stirred swirls) combustor head exit was studied by experiment. Experimental results shows that periodical flow structures are in the pilot swirling flow zone, while absent in the main outlet zone;the flow distortion in the pilot flow zone will happen when outer excitation frequency coupled with natural flow frequency, and the velocity oscillation amplitude of periodical flow will increase dramatically.

     

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