| 超燃燃烧室悬臂斜坡喷注器/凹腔组合结构研究 |
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| 引用本文： | 吴达,黄桂彬,陈锋莉,张涵.超燃燃烧室悬臂斜坡喷注器/凹腔组合结构研究[J].航空工程进展,2017,8(2):226-235. |
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| 作者姓名： | 吴达 黄桂彬 陈锋莉 张涵 |
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| 作者单位： | 空军工程大学防空反导学院,西安,710051 |
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| 摘 要： | 超燃燃烧室中燃料的掺混强化问题备受关注,为了优化悬臂斜坡喷注器/凹腔组合结构在超燃燃烧室中的流场特性,运用数值模拟方法对悬臂斜坡喷注器/凹腔组合结构的冷、热流场进行研究,对比分析有无凹腔结构、悬臂斜坡喷注器/凹腔不同位置组合对流场特性的影响。结果表明:随着组合位置距离的增大,凹腔的稳定燃烧作用变强,但不同的组合位置会带来燃烧室不同的燃料掺混效果和燃烧特性;综合考虑,组合距离h=30mm虽然总压损失较大,但却拥有更强的燃料掺混效果和更大的燃烧效率收益,流场特性最优。
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| 关 键 词： | 超燃燃烧室 悬臂斜坡喷注器 凹腔 流场特性 |
| 收稿时间： | 2017/1/17 0:00:00 |
| 修稿时间： | 2017/3/11 0:00:00 |
Study on cantilever ramp injector/cavity combination in a supersonic combustion |
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| wud,huang gui bin,chen feng li and zhanghan.Study on cantilever ramp injector/cavity combination in a supersonic combustion[J].Advances in Aeronautical Science and Engineering,2017,8(2):226-235. |
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| Authors: | wud huang gui bin chen feng li and zhanghan |
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| Affiliation: | air and missile defense college,AFEU,air and missile defense college,AFEU,air and missile defense college,AFEU,93448 |
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| Abstract: | The numerical simulation has been carried out to investigate the cold flow and hot flow characteristics for composite structure of cantilever ramp injector and cavity in the supersonic combustion. The structure without cavity and different positions of cantilever ramp injector/cavity combination has been comparative analyzed. It is noted that the combination distance is h=30mm while the total pressure loss is large, but it has a stronger effect of mixed fuel mix and combustion efficiency greater, flow characteristics is the best. |
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| Keywords: | supersonic combustion cantilever ramp injector cavity numerical simulation |
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