[1]周建伟,何小民,唐继勇,等.双油路离心喷嘴雾化锥角的试验研究[J].机械与电子,2020,(01):27-31.
 ,,et al.Experimental Investigationon Spray Angle of Dual-orifice Pressure Swirl Atomizer[J].Machinery & Electronics,2020,(01):27-31.
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双油路离心喷嘴雾化锥角的试验研究()
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机械与电子[ISSN:1001-2257/CN:52-1052/TH]

卷:
期数:
2020年01期
页码:
27-31
栏目:
设计与研究
出版日期:
2020-01-24

文章信息/Info

Title:
Experimental I nvestigation on Spray Angle of D ual-orifice Pressure Swirl Atomizer
文章编号:
1001- 2257(2020)01- 0027- 05
作者:
周建伟何小民唐继勇陈富鑫
南京航空航天大学能源与动力学院,江苏 南京 210016
Author(s):
ZHOUJianweiHEXiaominTANGJiyongCHENfuxin
CollegeofEnergyandPowerEngineering,NanjingUniversityofAeronauticsandAstronautics,Nanjing210016,China
关键词:
双油路离心喷嘴雾化锥角压差扩口式
Keywords:
dual orificepressureswirlatomizersprayangleinjectionpressuretrumpetnozzlestructure
分类号:
V231.3
文献标志码:
A
摘要:
针对双路离心喷嘴开展雾化锥角的研究,采用高速摄影仪拍摄不同供油压差,仅副油路、主油路和主副油路同时工作时的喷雾形态,进而分析不同工况下雾化锥角的变化规律,同时与传统经验关系式结果进行对比。结果表明,单路压差增加时,平口式的主油路锥角迅速增大,扩口式的副油路锥角逐渐减小,共同喷射时,由于低压核心区的作用双路锥角处于两路单独喷射之间,并随主油路压差增大而增大,随副油路压差增大而减小。最后将传统经验关系式结果和试验结果进行对比,由于特殊的喷口结构产生了径向速度分量,关系式结果均偏高。
Abstract:
To investigate the spray angle variations of dual-orifice pressure swirl atomizer,spray regimes were observed by a high speed camera in the experiment when the main or secondary fuel line operates respectively and together, and the variation of spray angle under different conditions was analyzed. The results indicates that: spray angle of main fuel line increases rapidly, spray angle of secondary fuel line with trumpet nozzle structure gradually reduces. When operating together, due to the meiobar range, spray angle is always between both sides. Spray angle increased with the increase of main injection pressure; decreased with the increase of secondary injection pressure. Finally, the experimental results were compared with the theoretical relation, large numerical error exists because theoretical relation ignores radial velocity caused by the trumpet nozzle structure.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019- 09- 24
作者简介:周建伟 (1996- ),男,江苏盐城人,硕士研究生,研究方向为航空发动机雾化与燃烧;何小民 (1971- ),男,浙江义乌人,教授,博士研究生导师,研究方向为航空航天推进系统燃烧理论和技术。
更新日期/Last Update: 2020-01-13