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加力用扇形喷嘴雾化特性试验

邸东 刘雨辰 王亚军

邸东, 刘雨辰, 王亚军. 加力用扇形喷嘴雾化特性试验[J]. 航空动力学报, 2020, 35(3): 457-470. doi: 10.13224/j.cnki.jasp.2020.03.002
引用本文: 邸东, 刘雨辰, 王亚军. 加力用扇形喷嘴雾化特性试验[J]. 航空动力学报, 2020, 35(3): 457-470. doi: 10.13224/j.cnki.jasp.2020.03.002
DI Dong, LIU Yuchen, WANG Yajun. Experiment on atomization characteristics of fan nozzle[J]. Journal of Aerospace Power, 2020, 35(3): 457-470. doi: 10.13224/j.cnki.jasp.2020.03.002
Citation: DI Dong, LIU Yuchen, WANG Yajun. Experiment on atomization characteristics of fan nozzle[J]. Journal of Aerospace Power, 2020, 35(3): 457-470. doi: 10.13224/j.cnki.jasp.2020.03.002

加力用扇形喷嘴雾化特性试验

doi: 10.13224/j.cnki.jasp.2020.03.002

Experiment on atomization characteristics of fan nozzle

  • 摘要: 根据加力燃烧室内锥凹腔点火与联焰要求,设计了扇形喷嘴并开展相应的雾化试验,研究了供油压差、扇形角度及扇形出口高度等参数对流量特性和雾化特性的影响以及加力环境下横向气流的温度、速度和供油压差对索太尔平均直径(SMD)及穿透深度的影响。采用称质量法测量流量系数,利用马尔文粒度仪和高速摄影仪对下游SMD、雾化角度及穿透深度进行测量。结果表明:①供油压差增大,流量系数先减少,后稳定;②供油压差一定,扇形出口角度越大,流量系数和雾化角度也越大;③扇形出口高度增加,雾化效果变好;④出口位置对雾化特性影响不大;⑤供油压差越大,穿透深度越大,SMD减小;⑥横向气流速度越大、温度越高,穿透深度越浅,油雾场越靠近下游;⑦横向气流温度越高, SMD越小。

     

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出版历程
  • 收稿日期:  2019-09-24
  • 刊出日期:  2020-03-28

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