北京航空航天大学学报 ›› 2011, Vol. 37 ›› Issue (11): 1456-1460.

• 论文 • 上一篇    下一篇

气量分配对双轴向旋流器燃烧室贫熄性能影响

谢法, 黄勇, 苗辉, 陈海刚   

  1. 北京航空航天大学 航空发动机气动热力重点实验室, 北京 100191
  • 收稿日期:2010-07-08 出版日期:2011-11-30 发布日期:2011-12-03
  • 作者简介:谢 法(1981-),男,山西神池人, 博士生,xiefa@sjp.buaa.edu.cn.

Effects of airflow split and primary holes arrangement on lean blowout limits of combustor with dual-axial swirlers

Xie Fa, Huang Yong, Miao Hui, Chen Haigang   

  1. National Key Laboratory on Aero-Engines, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2010-07-08 Online:2011-11-30 Published:2011-12-03

摘要: 针对采用双轴向旋流杯结构的某单头部矩形燃烧室,实验研究了头部进气面积及主燃孔布局对燃烧室贫熄特性的影响.实验结果表明:一、二级旋流器进气面积的变化对燃烧室贫油熄火性能有很大影响.一级进气面积增加20%可拓宽贫熄边界11.8%;二级进气面积增加20%可拓宽贫熄边界16.6%.相反,减小一、二级旋流器进气面积都使燃烧室的贫熄性能变差.此外,主燃孔布局的变化对燃烧室贫熄边界几乎没有影响.

Abstract: An experimental research was conducted for the effect of the variations of dome air entry areas and the arrangement of primary holes on the lean blowout (LBO) limits of a single dome rectangular model combustor with dual-axial swirl cups. The experimental results show that the variations of air entry areas into the swirlers will have great effect on the LBO performance of the combustors. Increasing the air entry area into the primary swirler by 20% will improve the combustor lean blowout limits about 11.8%, and increasing the air entry area into secondary swirler by 20% will improve the combustor lean blowout limits about 16.6%. On the contrary, the decrease of the air entry areas of the swirlers will deteriorate the LBO performance. Besides, the arrangement of primary holes has little effect on the combustor LBO limits.

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