对转双旋流气动喷嘴出口后流场结构的实验研究

推进技术 ›› 1996, Vol. 17 ›› Issue (4): 48-51.

对转双旋流气动喷嘴出口后流场结构的实验研究

邹正平,史伟,黄学民,王洪铭

北京航空航天大学宇航学院;北京航空航天大学宇航学院;北京航空航天大学宇航学院;北京航空航天大学宇航学院

发布日期:2021-08-15
基金资助:
航空科学基金

AN EXPERIMENTAL STUDY ON FLOW FIELD CHARACTERISTICS OF A COUNTER ROTATING SWIRL AIRBLAST ATOMIZER

School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing,100083;School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing,100083;School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing,100083;School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing,100083

Published:2021-08-15

摘要/Abstract

摘要： 研究了相互逆转双族流气动喷嘴出口后喷雾的流场结构。实验中采用粒子动态分析仪（ＰＤＡ）对喷嘴出口后冷态流场结构进行了测量，给出了平均速度以及瞬时脉动均方根速度的分布情况。结果表明：对转双族流气动喷嘴出口后流场可分为初始的掺混段和后来的扩散段两个阶段，在此两阶段，流场结构存在很大差异。

关键词: 燃料喷嘴;燃油雾化;喷射混合流;螺旋流;流动分布

Abstract: The flow field characteristics of an airblast atomizer with counter rotating swirlers areinvestigated. The measurements are carried out with PDA (Particle Dynamic Analyser) under noncombustion conditions. The results indicate that the differences between mixing and diffusion zones inthe flow field are notable.

Key words: Fuel injector;Fuel pulverization;Jet mixing flow;Helical flow;Flow distribution

邹正平,史伟,黄学民,王洪铭. 对转双旋流气动喷嘴出口后流场结构的实验研究[J]. 推进技术, 1996, 17(4): 48-51.