| 固冲发动机补燃室冷流掺混效果与燃烧效率对比研究 |
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| 引用本文： | 霍东兴,何国强,陈林泉,刘霓生,叶定友.固冲发动机补燃室冷流掺混效果与燃烧效率对比研究[J].固体火箭技术,2006,29(5):329-332. |
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| 作者姓名： | 霍东兴 何国强 陈林泉 刘霓生 叶定友 |
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| 作者单位： | 西北工业大学航天学院,西安,710072;中国航天科技集团公司四院,西安,710025 |
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| 摘 要： | 在燃气参数相同的条件下,定量分析了多种空气进气形式下的冷流掺混效果和燃烧效率,对其反应流场进行模拟,得到各自的燃烧效率曲线。通过掺混效果和燃烧效率的对比研究,结果表明,冷流掺混效果并不能完全反映二次燃烧效率,原因在于冷流流场分析仅考虑了纯气相流场的掺混效果,而未考虑两相流作用;金属粒子滞留时间对燃烧效率有很大影响。研究结果还表明,提高补燃室燃烧效率,除改善掺混效果外,还应设法延长金属粒子滞留时间。
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| 关 键 词： | 固体火箭冲压发动机 掺混流场 燃烧效率 |
| 文章编号： | 1006-2793（2006）05-0329-04 |
| 收稿时间： | 2006-02-27 |
| 修稿时间： | 2006-05-15 |
Contrast study on cold-flow mixing effect and combustion efficiency of afterburning chamber of solid rocket ramjet |
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| HUO Dong-xing,HE Guo-qiang,CHEN Lin-quan,LIU Ni-sheng,YE Ding-you.Contrast study on cold-flow mixing effect and combustion efficiency of afterburning chamber of solid rocket ramjet[J].Journal of Solid Rocket Technology,2006,29(5):329-332. |
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| Authors: | HUO Dong-xing HE Guo-qiang CHEN Lin-quan LIU Ni-sheng YE Ding-you |
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| Abstract: | Under the same gas parameter condition,cold-flow mixing effect and combustion efficiency of several air inlet models were quantitatively analyzed.Then reaction flow-fields were simulated,and the respective combustion efficiency was obtained.By contrast study,the results show that cold-flow mixing effect cann't completely reflect the combustion efficiency,because only mixing effect of pure gas phase flow-field was taken into account for coldflow flow-field analysis,without two phase flow-field.In addition,the stagnation time of metal particles has great effect on combustion efficiency.The investigation results show that betterment of mixing effect and prolongation of stagnation time can improve combustion efficiency. |
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| Keywords: | solid rocket ramjet mixing flow-field combustion efficiency |
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