航天推进技术研究院主办
[1]黄日鑫．谭永华.亚燃冲压发动机燃烧室燃油浓度分布预测[J].火箭推进,2008,34(04):17-21.
Huang Rixinl,Tan Yonghua.Numerical prediction of fuel distribution in a ramjet chamber[J].Journal of Rocket Propulsion,2008,34(04):17-21.
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Huang Rixinl,Tan Yonghua.Numerical prediction of fuel distribution in a ramjet chamber[J].Journal of Rocket Propulsion,2008,34(04):17-21.
亚燃冲压发动机燃烧室燃油浓度分布预测
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
34
期数:
2008年04期
页码:
17-21
栏目:
研究与设计
出版日期:
2008-08-29
- Title:
- Numerical prediction of fuel distribution in a ramjet chamber
- 分类号:
- TKl6
- 文献标志码:
- A
- 摘要:
- 基于Fluent两相反应流场计算平台，采用涡耗散概念模型，对典型亚燃冲压发 动机燃烧室的两相反应流场进行三维数值模拟计算。重点研究温度场影响下的燃油气相分布， 计算给出气相燃油在火焰稳定装置前后以及内部的分布，得到燃油在亚燃冲压发动机燃烧室 内分布的一般规律。计算发现，稳定装置内部及近后方燃油分布较富，到达火焰峰以后，燃 油浓度急剧下降。计算预测径向蒸发管后壁面与最外环蒸发管内的燃油富集，而中间环蒸发 管燃油分布较贫。计算结果与燃烧试验结果一致。
- Abstract:
- A simple numerical analysis was conducted to explore the fuel vapor distribution in a ramjet combustion chamber，especially in the near-field and inside of flame holder．With the help of Fluent software two-phase reacting flow module，the 3D numerical simulation was performed by US— ing eddy dissipation concept model．A general law of fuel distribution in hot flow of the chamber was obtained in the simulation．The simulation results indicate that there iS a rich—fuel area inside the holder and near its downstream part．Then，the fuel concentration falls down rapidly over the com— bustion area．The results also indicate that both back inner walls of the radial evaporating pipe and inside the outer circumferential evaporating pipe aye fuel concentrations，but the fuel concentration inside the mid-circumferential-pipe is lean，which is accord with the experiment results very well．
参考文献/References:
[1]杨茂林，顾建善，徐行，等．加力燃油浓度场计算方法研
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[3]黄日鑫，谭永华．亚燃燃烧室两相反应流场的燃烧模型
[J]．火箭推进，2008，(2)：24—30．
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[7]Wang T S．Thermo—Kinetics Characterization of Kerosene／
RP一1 Combustion[R]．AIAA96-2887．1996．
[8]黄玉辉．液体火箭发动机燃烧稳定性理论数值模拟和实
验研究[D]．长沙：国防科技大学，2001．
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备注/Memo
收稿日期：2008—05—07；修回日期：2008—06—24。 作者简介：黄日鑫(1982一)，男，硕士，研究领域为冲压发动机燃烧室技术。
更新日期/Last Update:
1900-01-01