| 引用本文: | 聂万胜,陈新华,赵文涛,等.姿控发动机脉冲工作的管路瞬变特性.[J].国防科技大学学报,2002,24(1):14-17.[点击复制] |
| NIE Wansheng,CHEN Xinhua,ZHAO Wentao,et al.Transient Characteristics During Pulse Operation of Liquid Feed Line for the Attitude Control Rocket Engine[J].Journal of National University of Defense Technology,2002,24(1):14-17[点击复制] |
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| 姿控发动机脉冲工作的管路瞬变特性 |
| 聂万胜1, 陈新华1, 赵文涛2, 庄逢辰1 |
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(1.装备指挥技术学院，北京 101416;2.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: |
| 采用有限差分格式的特征线方法，对某姿控推进系统发动机真实推进剂管路在脉冲工作情况下的瞬变特性进行了数值研究，对影响发动机多次脉冲启动的重要参数进行了定量计算，对比分析了试验结果与计算结果的一致性。说明该方法可方便地对包括许多管路、阀门和推力室的复杂系统进行动态性能分析，所得结果对于液体火箭发动机管路工程设计具有重要参考价值。 |
| 关键词: 瞬变流 有限差分格式，特征线方法 脉冲工况 |
| DOI： |
| 投稿日期：2001-10-17 |
| 基金项目:国家自然科学基金资助项目(50176054) |
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| Transient Characteristics During Pulse Operation of Liquid Feed Line for the Attitude Control Rocket Engine |
| NIE Wansheng1, CHEN Xinhua1, ZHAO Wentao2, ZHUANG Fengchen1 |
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(1.Institute of Command and Technology of Equipment, Beijing 101416,China;2.College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073,China)
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| Abstract: |
| By means of the finite difference scheme of characteristic method, the transient flows are simulated for the attitude control propulsion subsystem during the pulse operation. The effect of different conditions on dynamic behavior in pulse mode is investigated. The results are agreeable with the test process. The method can be used to analyze the dynamic performance of complex propulsion system consisting of numerous pipes, valves and thrusters. The results are valuable for designers. |
| Keywords: transient flow finite difference scheme characteristic method pulse mode |
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