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一种强剪切空气雾化喷嘴的流场和喷雾

李振祥 郭志辉 车俊龙 付宇

李振祥, 郭志辉, 车俊龙, 付宇. 一种强剪切空气雾化喷嘴的流场和喷雾[J]. 航空动力学报, 2014, 29(11): 2704-2709. doi: 10.13224/j.cnki.jasp.2014.11.022
引用本文: 李振祥, 郭志辉, 车俊龙, 付宇. 一种强剪切空气雾化喷嘴的流场和喷雾[J]. 航空动力学报, 2014, 29(11): 2704-2709. doi: 10.13224/j.cnki.jasp.2014.11.022
LI Zhen-xiang, GUO Zhi-hui, CHE Jun-long, FU Yu. Flow field and spray of a high shear air-blast nozzle[J]. Journal of Aerospace Power, 2014, 29(11): 2704-2709. doi: 10.13224/j.cnki.jasp.2014.11.022
Citation: LI Zhen-xiang, GUO Zhi-hui, CHE Jun-long, FU Yu. Flow field and spray of a high shear air-blast nozzle[J]. Journal of Aerospace Power, 2014, 29(11): 2704-2709. doi: 10.13224/j.cnki.jasp.2014.11.022

一种强剪切空气雾化喷嘴的流场和喷雾

doi: 10.13224/j.cnki.jasp.2014.11.022
详细信息
    作者简介:

    李振祥(1988-),男,福建莆田人,硕士生,主要研究方向为航空燃气轮机燃烧室.

  • 中图分类号: V231

Flow field and spray of a high shear air-blast nozzle

  • 摘要: 采用数值和实验方法对一种强剪切空气雾化喷嘴的流场和喷雾特性进行研究.采用粒子动态分析仪(PDA)实验研究了不同气液比下强剪切空气雾化喷嘴的速度场和喷雾场,并对该喷嘴的流场进行了数值计算,所得的计算结果与实验数据比较吻合.研究结果表明:强剪切空气雾化喷嘴的设计合理,两股旋流空气在喷嘴内部完成强烈的动量交换,并对燃油进行了强剪切.强剪切空气雾化喷嘴在宽调节比范围内能够完成良好的雾化,当气液比变化10倍,液雾的索太尔平均直径分布均处于20~60μm之间.随着气液比的增大,线平均索太尔平均直径逐渐减小,推导了适用于该喷嘴的索太尔平均直径计算模型,可为强剪切空气雾化喷嘴设计提供参考.

     

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出版历程
  • 收稿日期:  2013-07-19
  • 刊出日期:  2014-11-28

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