动量比对两股互击式喷嘴雾化特征的影响

郑刚; 冯伟; 聂万胜; 周立新

doi:10.13224/j.cnki.jasp.2016.09.030

动量比对两股互击式喷嘴雾化特征的影响

doi: 10.13224/j.cnki.jasp.2016.09.030

郑刚^1,2,
冯伟¹,
聂万胜^1, ,,
周立新³

1. 装备学院航天装备系, 北京 101416;
2. 西昌卫星发射中心技术部, 四川西昌 615000;
3. 中国航天科技集团公司西安航天动力研究所, 西安 710100

基金项目:

国家重大基础研究资助项目（613193）；国家自然科学基金（91441123）

详细信息

作者简介:
郑刚(1987-),男,四川凉山人,工程师,博士,主要从事液体火箭发动机喷注雾化研究.zhenggang.hai@163.com

通讯作者:
聂万胜(1969-),男,内蒙古丰镇人,教授,博士,研究方向为航空宇航推进与先进流动控制.E-mail:nws1969@126.com

中图分类号: V434
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出版历程
- 收稿日期: 2015-04-26
- 刊出日期: 2016-09-28

Effect of momentum ratio on atomization characteristics of unlike-doublet impinging jets injector

1. Department of Space Equipment, Equipment Academy, Beijing 101416, China;
2. Technology Department, Xichang Satellite Launch Center, Xichang Sichuan 615000, China;
3. Xi'an Aerospace Propulsion Institute, China Aerospace Science and Technology Corporation, Xi'an 710100, China

摘要

摘要: 基于CLSVOF（coupled level-set and volume of fluid）方法对两股互击式喷嘴雾化过程进行了数值模拟，仿真结果与实验结果进行对比，并详细考察了动量比对液膜特性的影响.结果表明：①CLSVOF方法能对射流撞击形成的液膜形态进行有效捕捉，计算获得的液膜形态与实验结果一致.②两股不同孔径的射流在撞击点撞击过程中，由于大孔径一侧的部分射流未参与撞击，而中心位置的液体在撞击之后速度迅速下降，周围的液体则保持撞击前的速度，使得射流撞击之后形成弧形状液膜.③在不同动量比条件下，射流撞击后轴线位置的合成角主要取决于参与撞击射流的动量比，数值计算结果与理论计算结果吻合较好，误差均小于10%.
- 液体火箭发动机 /
- 两股互击式喷嘴 /
- 动量比 /
- 雾化特性 /
- CLSVOF方法
Abstract: Numerical simulation was carried out on the atomization process of unlike-doublet impinging jets injector based on the CLSVOF (coupled level-set and volume of fluid) method. The simulation results were compared with the experiment results, and the effect of momentum ratios on liquid sheet characteristics was investigated in detail. The results show that:(1) The CLSVOF method can efficiently capture the liquid sheet characteristics formed by jet impact. The calculated liquid sheet agrees well with the experiment result. (2) In the impinging process of jets, part of the jet flow of large diameter nozzle is not involved in the impact, while the velocity of liquid in the central position drops rapidly after impact, and at the same time, the surrounding liquid maintains the velocity before impact, which results in the formation of cured liquid sheet. (3) Under the conditions of different momentum ratios, the resultant angle in the axis position after impact mainly depends on the momentum ratio of impinging jets. The simulation results are in good agreement with the theoretical calculation results, with the errors less than 10%.
- liquid rocket engine /
- unlike-doublet impinging jets injector /
- momentum ratio /
- atomization characteristics /
- CLSVOF method

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参考文献(18)

[1]	杨V,安德松W E.液体火箭发动机燃烧不稳定性[M].张宝炯,洪鑫,陈杰,译.北京:科学出版社,2001.
[2]	石少平,庄逢辰.射流撞击雾化索太尔平均直径的计算[J].推进技术,1995,16(3):22-25. SHI Shaoping,ZHUANG Fengchen.Calculation of the Sauter mean diameter of jet-impinging atomizers[J].Journal of Propulsion Technology,1995,16(3):22-25.(in Chinese)
[3]	Donald J H.Spray characterization of like-on-like doublet impinging rocket injector[R].AIAA 91-0687,1991.
[4]	Lai W H,Wang H C.Flow patterns generated by like and unlike-doublet impinging jets[R].AIAA-2002-3700,2002.
[5]	Li R,Nasser A.Characteristics of liquid sheet formed by two impinging jets[J].Physics of Fluid,2006,18(8):1-13.
[6]	张蒙正,张泽平.两股互击式喷嘴雾化性能实验研究[J].推进技术,2000,21(1):57-59. ZHANG Mengzheng,ZHANG Zeping.Experimental research on spray properties of unlike impinging injectors[J].Journal of Propulsion Technology,2000,21(1):57-59.(in Chinese)
[7]	张蒙正,杨伟东,王玫.双股互击式喷嘴凝胶水雾化特性实验[J].推进技术,2008,29(1):22-24. ZHANG Mengzheng,YANG Weidong,WANG Mei.Test of unlike impinging injector atomization characteristics with gelled water[J].Journal of Propulsion Technology,2008,29(1):22-24.(in Chinese)
[8]	刘晓伟,胡伟,曹晶,等.鲁泊数和孔径比对直流互击式喷注器性能的影响[J].火箭推进,2010,36(3):24-27. LIU Xiaowei,HU Wei,CAO Jing,et al.Effects of Rupe number and ratio of injection orifice diameter on unlike impinging injector performance[J].Journal of Rocket Propulsion,2010,36(3):24-27.(in Chinese)
[9]	Lebas R,Menard T,Beau P A,et al.Numerical simulation of primary break-up and atomization:DNS and modeling study[J].International Journal of Multiphase Flow,2009,35(3):247-260.
[10]	LI Qiang,OUYANG Jie,YANG Binxin,et al.Numerical simulation of gas-assisted injection molding using CLSVOF method[J].Applied Mathematical Modelling,2012,36(5):2264-2274.
[11]	CHEN Xiaodong,MA Dongjun,Yang V.Mechanism study of impact wave in impinging jets atomization[R].AIAA-2012-1089,2012.
[12]	Chihiro I,Toshinori W,Takehiro H.Liquid sheet dynamics and primary breakup characteristics at impingement type injector[R].AIAA-2009-5014,2009.
[13]	Chihiro I,Toshinori W,Takehiro H.Study on atomization process of liquid sheet formed by impinging jets[R].AIAA-2008-4847,2008.
[14]	魏锦洲,王占学.两股互击式喷嘴雾化数值模拟研究[J].机械设计与制造,2009(8):130-132. WEI Jinzhou,WANG Zhanxue.Numerical simulation for spray characteristic of like-doublet injector[J].Machinery Design and Manufacture,2009(8):130-132.(in Chinese)
[15]	强洪夫,刘虎,陈福振,等.基于SPH方法的射流撞击仿真[J].推进技术,2012,33(3):424-429. QIANG Hongfu,LIU Hu,CHEN Fuzhen,et al.Simulation on jet impingement based on SPH method[J].Journal of Propulsion Technology,2012,33(3):424-429.(in Chinese)
[16]	Sussman M,Puckett E.A coupled level set and volume-of-fluid method for computing 3D and axisymmetric incompressible two-phase flow[J].Journal of Computational Physics,2000,162(2):301-337.
[17]	Brackbill J U,Kothe D B,Zemach C A.A continuum method for modeling surface tension[J].Journal of Computational Physics,1992,100(2):335-354.
[18]	张蒙正,傅永贵,张泽平,等.两股互击式喷嘴雾化研究及应用[J].推进技术,1999,20(2):73-75. ZHANG Mengzheng,FU Yonggui,ZHANG Zeping,et al.Spray property research and application of unlike impinging injector[J].Journal of Propulsion Technology,1999,20(2):73-75.(in Chinese)