Volume 38 Issue 3
Mar.  2023
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ZHANG Rongxing, YANG Dawei, MA Zhu, et al. Effect of anti-carbon deposition structure on fuel distribution of nozzle[J]. Journal of Aerospace Power, 2023, 38(3):588-595 doi: 10.13224/j.cnki.jasp.20220444
Citation: ZHANG Rongxing, YANG Dawei, MA Zhu, et al. Effect of anti-carbon deposition structure on fuel distribution of nozzle[J]. Journal of Aerospace Power, 2023, 38(3):588-595 doi: 10.13224/j.cnki.jasp.20220444

Effect of anti-carbon deposition structure on fuel distribution of nozzle

doi: 10.13224/j.cnki.jasp.20220444
  • Received Date: 2022-06-21
    Available Online: 2023-02-08
  • The effects of anti-carbon deposition structure on fuel distribution of aero-engine combustor double-way nozzle were investigated numerically and experimentally. Firstly, optical distributed spray detection system was applied to measure the fuel distribution, and the spray cone angel, circumferential and radial distribution of the section 20 mm downstream the nozzle outlet were obtained; the numerical simulation of the nozzle with different anti-carbon deposition structure was carried out by using VOF simulation method. The results showed that, under the same fuel pressure, the spray cone angel and peak radius of radial distribution decreased, while the proportion of fuel in the small radius increased, considering the effect of anti-carbon deposition structure of nozzle. The numerical calculation results were in good agreement with the experimental results, which can effectively explain the effect of anti-carbon flow on fuel distribution. Under the same fuel pressure and air pressure, when the nozzle was matched with different anti-carbon deposition structures, the spray cone angel was related to the velocity of the center airflow at the nozzle, and the circumferential distribution was mainly related to the gas-liquid ratio.

     

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