航天推进技术研究院主办
Ding Zhaobo,Luan Yejun,Sun Jiguo.Numerical optimization study on flame-holder layout for a ramjet combustor[J].Journal of Rocket Propulsion,2009,35(06):9-13.
某型冲压燃烧室火焰稳定器布局数值优化研究
- Title:
- Numerical optimization study on flame-holder layout for a ramjet combustor
- 分类号:
- V235.21
- 文献标志码:
- A
- 摘要:
- 为了研究不同火焰稳定器布局对燃烧室流场特征和燃烧性能的影响,对某型亚燃冲压发动机燃烧室的三维湍流燃烧流场进行了数值模拟。文中采用守恒标量的PDF模型处理扩散燃烧问题,喷雾采用离散相模型,在全流场中用拉格朗日方法跟踪离散液滴的运动和输运。计算结果表明,内外圈稳定器轴向间距取1倍槽宽时出口温度分布最均匀,取2倍槽宽时温升效率最高;等槽负荷原则设计具有最优的出口温度均匀性、温升效率和流阻系数。计算结果定性合理,可用于预估不同条件下的燃烧室性能,用于燃烧室优化设计,指导燃烧试验。
- Abstract:
- In order to study the influence of the flame- holder layout on the outlet temperature distribution, combustion efficiency and total pressure loss, the numerical simulation of combustion flow field for a ramjet combustor was completed. The PDF combustion model is used to deal with the turbulent combustion. Results of numerical simulation show that the axial relative distance of flame-holder has obvious effect on combustor performance. The equivalent wide design has the best performance. The results of computation are qualitatively reasonable. It was aimed at predicting the performance characteristics of ramjet combustor through numerical simulation, and giving guidance to modification design of combustor or combustion experiments.
参考文献/References:
[1][美]约翰·霍普金斯大学应用物理实验所编. 冲压发动机技术[M]. 北京: 国防工业出版社, 1980.
[2]侯晓春, 季鹤鸣. 高性能航空燃气轮机燃烧技术[M]. 北京: 国防工业出版社, 2002.
[3]刘兴洲. 飞航导弹动力装置[M]. 北京: 宇航出版社, 1992.
[4]赵坚行. 燃烧的数值模拟[M]. 北京: 科学出版社, 2002.
[5]《航空发动机设计手册》 总编委会编. 加力燃烧室[M]. 北京: 航空工业出版社, 2001.
相似文献/References:
[1]丁兆波,金 捷.某蒸发式稳定器燃烧特性及供油匹配数值研究[J].火箭推进,2012,38(04):43.
DING Zhao-bo,JIN Jie.Numerical investigation on combustion characteristics and fuel supply matching for an evaporative flame-holder[J].Journal of Rocket Propulsion,2012,38(06):43.
[2]金莉,谭永华.火焰稳定器综述[J].火箭推进,2006,32(01):30.
Jin Li,Tan Yonghua.Study on flameholders[J].Journal of Rocket Propulsion,2006,32(06):30.
备注/Memo
收稿日期:2009-07-07;修回日期:2009-10-20。
作者简介: 丁兆波(1980—),男,工程师,研究领域为发动机燃烧装置试验和数值研究。