超声速横向气流中燃料雾化的数值模拟

刘静; 徐旭

超声速横向气流中燃料雾化的数值模拟

刘静,
徐旭

北京航空航天大学宇航学院, 北京 100191

详细信息

中图分类号: V 211.1⁺7
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出版历程
- 收稿日期: 2009-08-24
- 网络出版日期: 2010-10-31

Numerical simulation of atomization of liquid jet in supersonic crossflow

Liu Jing,
Xu Xu

School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 对超声速横向气流中燃料雾化过程采用欧拉-拉格朗日方法进行了数值模拟,气相场用欧拉法计算,液相场采用拉格朗日粒子跟踪方法计算,通过方程源项考虑液相对气相的影响.在液相的拉格朗日计算中采用改进的混合雾化模型来研究雾化过程.针对超声速横向气流中雾化的特点,结合雾化机理和实验测量结果,对原有的混合雾化模型进行了改进,并将改进后的计算结果与TAB(Taylor Analogy Breakup)模型和Reitz波模型的计算结果进行了对比.结果表明:改进的混合雾化模型的计算结果与实验测量值符合较好,更适合用于超声速横向气流中燃料雾化的数值模拟.
- 两相流 /
- 雾化 /
- 超声速流 /
- 数值模拟
Abstract: Liquid jet atomization in supersonic crossflow was simulated using Euler-Lagrangian method. Euler method was used for gas phase and Lagrangian method was used for liquid phase. The liquid influences were calculated by source items in gas equations. The atomization process was simulated using the hybrid atomization model. This model was improved according to the atomization mechanism and experimental results. The improved simulation results were compared with Taylor analogy breakup (TAB) model and Reitz wave model. The calculation results agree well with the experiment results. It is found that the advanced hybrid atomization model is much more suited for the current calculation than the other models.
- two phase flow /
- atomization /
- supersonic flow /
- numerical simulation

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参考文献(1)

[1] 岳连捷,俞刚.超声速气流中横向煤油射流的数值模拟[J].推进技术,2004,25(1):11-14 Yue Lianjie,Yu Gang.Numerical simulation of liquid fuel atomization in supersonic crossflow[J].Journal of Propulsion Technology,2004,25(1):11-14 (in Chinese) [2] Im Kyoung-Su,Lin K C,Lai M C.Spray atomization of liquid jet in supersonic cross flows .AIAA-2005-732,2005 [3] 杨顺华,乐嘉陵.超声速气流中液体燃料雾化数值模拟[J].推进技术,2008,29(5):519-522 Yang Shunhua,Le Jialing.Numerical simulation of liquid fuel atomization in supersonic crossflow[J].Journal of Propulsion Technology,2008,29(5):519-522(in Chinese) [4] 刘静,徐旭.基于轨道法的气-液两相流数值计算模型 //首届全国航空航天领域中的力学问题学术研讨会论文集.北京:北京航空航天大学,2004:97-100 Liu Jing,Xu Xu.Two-phase flow numerical modeling based on trajectory method //Proceeding of the 1^st Mechanics Problems in Aeronautics and Astronautics Area.Beijing:Beijing University of Aeronautics and Astronautics,2004:97-100(in Chinese) [5] Patterson M A,Reitz R D.Modeling the effects of fuel spray characteristics on diesel engine combustion and emission .SAE980131,1998 [6] Ricart L M,Xin J,Bower G R,et al.In-cylinder measurement and modeling of liquid fuel spray penetration in a heavy-duty diesel engine .SAE971591,1997 [7] Wu P K,Kirkendall K A.Breakup processes of liquid jets in subsonic crossflow[J].Journal of Propulsion and Power,1997,13(1):64-73 [8] Hsiang L P,Feath G M.Near-limit drop deformation and second breakup[J].International Journal of Multiphase Flow,1992,18(5):635-652 [9] Lin K C,Kennedy P J,Jackson T A.Structures of water jets in a mach 1.94 supersonic crossflow .AIAA-2004-971,2004 [10] Lin K C,Kennedy P J,Jackson T A.Structures of water jets in a mach 1.94 supersonic crossflow .AIAA-2004-971,2004

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