内孔隔板脉冲固体火箭发动机流场分析

曹熙炜; 刘宇; 任军学; 王一白

内孔隔板脉冲固体火箭发动机流场分析

北京航空航天大学宇航学院,北京 100191

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出版历程
- 收稿日期: 2009-12-11
- 修回日期: 2010-06-25
- 刊出日期: 2011-02-28

Analysis on flow field of inner bore clapboard pulse solid rocket motor

School of Astronautics, Beijing University of Aeronautics and Astronautics,Beijing 100191,China

摘要

摘要: 为了获得内孔隔板脉冲固体火箭发动机的流场特点,基于该发动机的工作原理,利用商用计算流体动力学软件对第二级脉冲工作时不同时刻的流场进行数值模拟.在纯气相和气固两相条件下,从压强、马赫数和温度三个角度对仿真结果进行分析,总结出了内孔隔板脉冲固体火箭发动机在纯气相和两相时的流场特点.即压强分布相似,马赫数和温度场存在滞后现象,且固体颗粒对喷管扩张段的作用集中在壁面附近,进而对内孔隔板脉冲固体火箭发动机的部件设计提供了参考.
- 内孔隔板 /
- 脉冲固体火箭发动机 /
- 流场 /
- 气固两相 /
- 数值模拟
Abstract: In order to obtain the characteristics of the flow field of inner bore clapboard pulse solid rocket motor,the numerical simulation of flow field was carried out using the CFD (computational fluid dynamics) software based on the principle of the motor.On the condition of pure gas phase and gas-particle phase,the results were analyzed in terms of pressure,Mach number and temperature.Through the analysis,the characteristic of inner bore clapboard pulse solid rocket motors flow field was summarized.The pressure distribution was similar,but the Mach number and temperature contours had lag phenomenon.In addition,the solid particles had a severe effect on the wall of the nozzle expanding section.The result provides references for the design of the inner bore clapboard pulse solid rocket motor.
- inner bore clapboard /
- pulse solid rocket motor /
- flow field /
- thermo-structure analysis /
- buckling analysis

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参考文献(12)

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