Volume 29 Issue 2
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JIN Ren-han, LIU Yong, FENG Zhi-peng, WANG Suo-fang. Experiment on spray characteristic of single head of dual-swirl cup combustor[J]. Journal of Aerospace Power, 2014, 29(2): 250-258. doi: 10.13224/j.cnki.jasp.2014.02.002
Citation: JIN Ren-han, LIU Yong, FENG Zhi-peng, WANG Suo-fang. Experiment on spray characteristic of single head of dual-swirl cup combustor[J]. Journal of Aerospace Power, 2014, 29(2): 250-258. doi: 10.13224/j.cnki.jasp.2014.02.002
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Experiment on spray characteristic of single head of dual-swirl cup combustor

doi: 10.13224/j.cnki.jasp.2014.02.002

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

  • Received Date: 2012-12-11
  • Publish Date: 2014-02-28
    Abstract
  • In order to obtain fuel spray characteristics of dual-swirl cup combustor,the particle image velocimetry (PIV) was applied to measure the spray field of its single head.Through the experiment,the fuel spray characteristics were obtained with different fuel flow distributions and locations of the pilot atomizer.Under the experimental conditions,the results show that:(1) Volume fraction of the droplet size of 80μm is the largest,while volume fraction of the other droplet sizes not equal to 80μm decreases sharply.(2) When the fuel flow increase,the spray quality deteriorates with only pilot fuel atomizer available,and differs little with only primary atomizer available.(3) The fuel spray field of pilot fuel atomizer at swirler outlet has better performance than that of pilot atomizer at throat position.(4) When the pilot and primary fuel atomizer operate at the same time,atomization quality is improved with increase of primary fuel flow rate while inlet fuel air ratio is kept unchanged.

     

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