| 摘要: |
| 为计算带约束流场的固体火箭发动机推力特性，建立了一维准定常变截面的内弹道计算和约束流场流动的数学模型。计算结果表明，约束流场使推力增加１４％，冲波进入喷管扩张段。与试验结果很接近，表明计算模型正确，可用于其它型号带约束流场的推力特性计算。 |
| 关键词: 固体推进剂火箭发动机 内弹道计算 气体－固体互作用 流动分布 |
| DOI： |
| 分类号:V430 |
| 基金项目: |
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| THRUST CHARACTERISTICS OF SOLID ROCKET MOTOR WITH RESTRAINED FLOW FIELDS |
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Fang Guoyao, Gao Shanhui, Sun Zhexi, Tang Zhidong
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School of Astronautics, Beijing Univ. of Aeronautics & Astronautics, Beijing, 100083
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| Abstract: |
| n order to compute the thrust characteristics of solid rocket motorwith the restrained flow, this paper establishes an internal ballistic mathematicalmodel by use of the steady one-dimensional flow equations in passage withchangable cross-sections in restrained flow fields. The results show that the thrustincreases by 14%, shock waves have entered the nozzle and the models developedare correct. The method is suitable for other solid rocket motors. |
| Key words: Solid propellant rocket engine Interior ballistic calculation Gassolid interaction Flow distribution |
