[1]曹 敏,何小民.气旋耦合喷嘴喷雾特性研究[J].机械与电子,2020,(02):34-40.
 .Study on Spray Characteristics of a Novel Hybrid Atomizer[J].Machinery & Electronics,2020,(02):34-40.
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气旋耦合喷嘴喷雾特性研究()
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机械与电子[ISSN:1001-2257/CN:52-1052/TH]

卷:
期数:
2020年02期
页码:
34-40
栏目:
设计与研究
出版日期:
2020-02-24

文章信息/Info

Title:
Study on Spray Characteristics of a Novel Hybrid Atomizer
文章编号:
1001-2257(2020)02-0034-07
作者:
曹 敏何小民
南京航空航天大学能源与动力学院,江苏 南京 210016
Author(s):
CAOMinHE Xiaomin
CollegeofEnergyandPowerEngineering,NanjingUniversityofAeronauticsandAstronautics,Nanjing210016,China
关键词:
气旋耦合喷嘴喷雾特性喷雾锥角雾化粒径
Keywords:
:anovelhybridatomizerspraycharacteristicssprayangleSMD
分类号:
V231.3
文献标志码:
A
摘要:
:对一种气旋耦合喷嘴喷雾特性进行了试验研究,分析总结了气液比及液相压力对其喷雾特性 的影响规律。试验中使用水为工质,利用工业相机对其液雾进行拍摄并利用 MATLAB进行图像处理,获得 喷雾锥角,利用相位多普勒粒子分析仪(PDPA)对雾化粒径进行测量。研究表明,在液相压力一定时,随着 气液比增加,平行于预膜片方向喷雾锥角几乎不受影响,垂直于预膜片方向喷雾锥角先增大后略有减小;增 加液相压力,平行于预膜片方向喷雾锥角增大,垂直于预膜片方向喷雾锥角最大值和其对应的气液比减小; 气旋耦合喷嘴雾化粒径沿径向分布规律为中间雾化粒径较小向两侧逐渐增大;雾化粒径在液相压力较低时 受气液比影响大,随着液相压力增加受气液比影响减小。
Abstract:
Anexperimentalstudyonspraycharacteristicsofanovelhybridatomizer,combiningthe spraycharacteristicsofpressure swirl,waspresented.Attentionisfocusedontheeffectofpressureof liquidphaseandair to liquidratioonspraycharacteristics.Waterwasusedastheworkingsubstancein theexperiment.Thespraypatternwasphotographedbyanindustrialcameraandimageprocessingwas performedusingmatlabtoobtainasprayangle,andtheatomizedparticlesizewasmeasuredbyaPhase DopplerParticleAnalyzer(PDPA).Itshowsthat:Whenthepressureofwaterisconstant,astheair to liquidratioincreases,thesprayangleisalmostunaffectedparalleltothedirectionofthepre filmlip, andthesprayangleincreasesandthendecreasesslightlyperpendiculartothepre filmlipdirection;In creasingthewaterpressureincreasesthesprayangleparalleltothepre filmdirection,andthesprayan glemaximumperpendiculartothepre filmlipdirectionanditscorrespondingair to liquidratiodecrea ses.TheradialdistributionoftheSMDoftheatomizeristhatthemiddleSMDissmallerandgraduallyin creasedtothetwosides;SMDisgreatlyaffectedbytheair to liquidratiowhenthewaterpressureis low,andlessaffectedbyair to liquidratioasthewaterpressureincreases.

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备注/Memo

备注/Memo:
收稿日期:2019- 10- 29 作者简介:曹 敏 (1994-),男,安徽庐江人,硕士研究生,研究方向为燃烧与传热传质;何小民 (1971-),男,浙江义乌人,博士,研究 方向为航空发动机燃烧技术。
更新日期/Last Update: 2020-03-11