| 固体推进剂装药裂纹内燃烧流动的实验研究 |
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| 引用本文： | 张文普,何国强,刘佩进,陈剑,蔡体敏.固体推进剂装药裂纹内燃烧流动的实验研究[J].推进技术,2000,21(5):58-60. |
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| 作者姓名： | 张文普 何国强 刘佩进 陈剑 蔡体敏 |
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| 作者单位： | 西北工业大学,航天工程学院,陕西,西安,710072 |
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| 摘 要： | 通过设计实验装置形成了一条预制裂纹，用高速运动分析仪及数据采集系统测试了火焰的裂纹内的传播及裂纹内的压强变化，研究了不同几何特性和增压下，固体推进剂裂纹的燃烧流动情况。实验表明：裂纹内的火焰传播速度受裂纹几何条件和增压的共同影响，增压越大，裂纹越窄，火焰传播速度越大。裂纹尖端压强与裂纹入口压强比的最大值也受增压和几体条件的影响，增压越大，裂纹越窄，该压强比越大。
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| 关 键 词： | 固体推进剂火箭发动机 固体推进剂 燃烧试验 |
Experimental investigation on crack combustion and flow in solid propellant |
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| Zhang WenPu,He GuoQiang,Liu PeiJing,Chen Jian and Cai TiMing.Experimental investigation on crack combustion and flow in solid propellant[J].Journal of Propulsion Technology,2000,21(5):58-60. |
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| Authors: | Zhang WenPu He GuoQiang Liu PeiJing Chen Jian and Cai TiMing |
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| Abstract: | Flame spreading and flow field in solid propellant crack were studied by simulated test in order to provide analysis basis for crack propagation and branching The effects of pressurization rate, crack gap width and crack length on the combusting flow were investigated Flame front position was measured using a high speed motion analyzer This study indicates that the time required for the flame front to reach the crack tip decreases as the pressurization rate increases and the crack width decreases The maximum pressure in crack tip increases with an increase in pressurization rate and decreases with increase in crack width |
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| Keywords: | Solid propellant rocket motor Solid propellant Crack Flame spread Combustion test |
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