同心筒发射装置燃气排导的气体动力学原理分析

于勇; 徐新文; 傅德彬

同心筒发射装置燃气排导的气体动力学原理分析

北京理工大学宇航学院飞行器动力学与控制教育部重点实验室, 北京 100081

基金项目: 国家自然科学基金(10702009); 飞行器动力学与控制教育部重点实验室开放基金(GFTD0803)

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出版历程
- 收稿日期: 2011-04-20
- 修回日期: 2011-06-15
- 刊出日期: 2012-03-28

Aerodynamic theory analysis of gas exhausting from concentric canister launcher

Key Laboratory of Dynamics and Control of Flight Vehicle, Ministry of Education, School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China

摘要

摘要: 通过同心筒发射装置燃气排导的流场分析,提出了同心筒气体动力学过程的简化模型,分析了燃气从发动机喷管流出后分别经历一个的变截面和摩擦管流的过程,并对一个具体的同心筒发射装置的流场进行了数值模拟,验证了所提出的简化气体动力学原理模型的正确性.然后根据原理分析,总结出了几个同心筒结构优化设计中需要考虑的参数,解释了这些设计参数的作用原理,使同心筒的优化设计有了初步的理论指导和优化方向,并根据基本原理给出了一种快速估算最小狭缝宽度和平均附加弹射力的方法.
- 同心筒 /
- 燃气射流 /
- 数值模拟 /
- 气体动力学原理 /
- 设计参数
Abstract: The simplified model of concentric canister launcher (CCL) was proposed according to the gas flowing and exhausting process.The gas from the rocket motor nozzle flows through a stage of reducing cross-area and experiences a uniform section frictional pipe flow.A numerical simulation of a certain CCL case was conducted to verify that the simplified theory model was reasonable.Then some structural factors of optimizing design of CCL were summarized and explained how these factors worked from the analysis of the simplified theory model.According to the basic simplified theory model,a convenient and simple method to estimate the smallest size of gap and the additional eject force of missile has been given.And the simplified theory model also can be used to guide and improve the design of CCL.
- CCL(concentric canister launcher) /
- gas jet /
- numerical simulation /
- aerodynamic theory /
- design parameters

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参考文献(16)

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