| 用粒子仿真法计算含缺陷固体发动机内流场 |
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| 引用本文： | 葛爱学,齐少军.用粒子仿真法计算含缺陷固体发动机内流场[J].推进技术,2003,24(4):310-314. |
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| 作者姓名： | 葛爱学 齐少军 |
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| 作者单位： | 1. 国防科技大学,航天与材料工程学院,湖南,长沙,410073
2. 第二炮兵第四研究所,北京,100085 |
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| 摘 要： | 利用“N-S方程 粒子仿真”方法来计算含缺陷固体发动机的内流场，计算结果表明：该模型可以很好模拟裂纹对发动机内流场的影响，同时指出环形裂纹内的流动对主流的影响大于纵向裂纹，环形裂纹内上游位置流动对主流的影响较下游位置的大，并可以保持到喷管喉部，翼槽附近的环形裂纹内的流动，对主流的影响相对较弱。
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| 关 键 词： | 固体推进剂火箭发动机 裂纹 流动分布 模型 纳维尔．斯托克斯方程 数值仿真 |
| 文章编号： | 1001-4055(2003)04-0310-05 |
| 修稿时间： | 2002年8月30日 |
Particle simulation model for the inner flow field in solid rocket motor with crack |
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| GE Ai-xue and QI Shao-jun.Particle simulation model for the inner flow field in solid rocket motor with crack[J].Journal of Propulsion Technology,2003,24(4):310-314. |
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| Authors: | GE Ai-xue and QI Shao-jun |
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| Institution: | GE Ai-xue~1,QI Shao-jun~2 |
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| Abstract: | The inner flow field in solid rocket motor with crack was calculated with method of N-S equation plus particle simulation. The results demonstrate that the model can accurately simulate the influence brought about by the crack in the solid rocket motor on the inner flow field. And besides, the influence brought about by flow in annular lacuna on mainstream is more important than that in axial lacuna. The influence by upstream flow is more significant than the downstream flow in annular lacuna, and the influence maintains until the nozzle. The flow in annular lacuna near the grooves has less impact on the mainstream. |
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| Keywords: | Solid propellant rocket engine Crack Flow distribution Model Navier-Stokes equation Numerical simulation |
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