| 引用本文: | 赵湘恒,夏智勋,胡建新,等.固冲发动机进气道工作过程干扰因素.[J].国防科技大学学报,2011,33(3):23-27.[点击复制] |
| ZHAO Xiangheng,XIA Zhixun,HU Jianxin,et al.Interfering Factors on Inlet Working Process in the Solid Rocket Ramjet[J].Journal of National University of Defense Technology,2011,33(3):23-27[点击复制] |
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| 固冲发动机进气道工作过程干扰因素 |
| 赵湘恒, 夏智勋, 胡建新, 王德全, 方传波, 游进 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 分析了固冲发动机进气道、补燃室、尾喷管一体化流场中，在不同干扰因素下的进气道工作过程，研究了进气道出口燃气压力在时间上和空间上的突变以及尾喷管喉径的突变对进气道内部流动过程的影响，得到了不同干扰因素下的进气道工作特性。结果表明: 进气道出口燃气压力在时间上的突变容易引起进气道出口燃气反压分布不均；进气道内流场对压力空间突变的响应时间比时间突变的响应时间要长；冲压喷管突然变小后，进气道内部扩压段的分离回流区逐渐向上游移动。 |
| 关键词: 固体火箭冲压发动机 进气道 干扰因素 一体化 |
| DOI： |
| 投稿日期：2010-07-02 |
| 基金项目: |
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| Interfering Factors on Inlet Working Process in the Solid Rocket Ramjet |
| ZHAO Xiangheng, XIA Zhixun, HU Jianxin, WANG Dequan, FANG Chuanbo, YOU Jin |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| The working process of inlet under the condition of different given influencing factors in the inlet/combustor/nozzle integrated flow field was discussed. The effect of fluctuation of nozzle diameter on the inlet was investigated. We also explored the effect of time and space fluctuation of inlet exit pressure on the inlet. The operating characteristics of inlet with different interfering factors were achieved. The result showed that time fluctuation of inlet exit pressure can bring the non-uniform distribution of inlet exit pressure. The response time of space fluctuation was longer than the that of time fluctuation. The recirculation zone at the diffusers moved upward gradually when the nozzle diameter was reduced. |
| Keywords: solid rocket ramjet inlet interfering factors integrated |
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