| 固冲发动机沉积数值模拟与试验研究 |
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| 引用本文： | 王德全,夏智勋,胡建新,郭健.固冲发动机沉积数值模拟与试验研究[J].固体火箭技术,2009,32(1). |
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| 作者姓名： | 王德全 夏智勋 胡建新 郭健 |
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| 作者单位： | 国防科技大学,航天与材料工程学院,长沙,410073 |
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| 摘 要： | 分析了液滴撞壁模型的发展概况,基于Mundo模型,分析了粘附、反弹、飞溅3种状态的固冲发动机沉积模型,并对发动机内沉积问题进行了数值模拟与试验研究.结果表明,发动机内沉积主要集中在补燃室头部、进气道下游、冲压喷管收敛段;颗粒粒径分布对沉积位置影响很大;由试验压强-时间曲线换算得到的冲压喷管喉部沉积速率与数值模拟结果基本相符.
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| 关 键 词： | 固体火箭冲压发动机 沉积 数值模拟 试验 两相流 |
Numerical simulation and experimental study of deposition for ducted rockets |
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| WANG De-quan,XIA Zhi-xun,HU Jian-xin,GUO Jian.Numerical simulation and experimental study of deposition for ducted rockets[J].Journal of Solid Rocket Technology,2009,32(1). |
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| Authors: | WANG De-quan XIA Zhi-xun HU Jian-xin GUO Jian |
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| Institution: | Institute of Aerospace and Material Engineering;National University of Defense Technology;Changsha 410073;China |
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| Abstract: | Various droplet/wall interaction models and a deposition model accounting for deposition,rebound and splash modes for ducted rockets were analyzed and deposition for ducted rockets were numerically simulated and experimentally investigated.The result shows that deposition for ducted rockets is mostly focused in the zones such as the head-end of secondary combustion chambers,downstream inlet and convergent section of nozzle.The particle size distribution has a great effect on the depositing position,and the ... |
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| Keywords: | ducted rocket motor deposition numerical simulation experiment two phase flow |
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