| 排氢燃烧系统点火粒子两相流特性研究 |
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| 引用本文： | 赵忠明,赵立乔,许学雷,王珏,沈福东.排氢燃烧系统点火粒子两相流特性研究[J].导弹与航天运载技术,2017(4). |
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| 作者姓名： | 赵忠明 赵立乔 许学雷 王珏 沈福东 |
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| 作者单位： | 1. 北京航天发射技术研究所,北京,100076;2. 中国运载火箭技术研究院,北京,100076 |
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| 摘 要： | 排氢燃烧系统是新一代运载火箭发射的关键设备,氢氧发动机排放的低温氢气需要进行有效处理,否则会产生爆燃或爆轰,从而影响火箭发射的成败。排氢燃烧系统采用高温金属粒子点火方法,高温金属粒子的流动特性决定了排氢燃烧效果。为获得点火粒子的运动特性,采用颗粒轨道模型对点火粒子-高温燃气两相流动进行数值模拟,获得不同粒径颗粒的温度空间分布及其变化规律。
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| 关 键 词： | 运载火箭 粒轨道模型 排氢燃烧系统 仿真研究 |
Study on Two-phase Flow Characteristics of Ignition Particles of Hydrogen Combustion System |
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| Zhao Zhong-ming,Zhao Li-qiao,Xu Xue-lei,Wang Jue,Shen Fu-dong.Study on Two-phase Flow Characteristics of Ignition Particles of Hydrogen Combustion System[J].Missiles and Space Vehicles,2017(4). |
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| Authors: | Zhao Zhong-ming Zhao Li-qiao Xu Xue-lei Wang Jue Shen Fu-dong |
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| Abstract: | Hydrogen combustion system is the key equipment for new generation launch vehicle.The cryogenic hydrogen emitted by the LOX/LH2 engine needs to be effectively handled, otherwise deflagration or detonation will occur, which will affect the success of the rocket launch. The hydrogen combustion system adopts the method of ignition by high temperature metal particles. The flow characteristics of high temperature particles determine the effect of hydrogen combustion. Particle trajectory model is used to simulate the particle and gas two-phase flow in order to obtain the motion characteristics of the particles. The results obtained the temperature and spatial distribution characteristics of particles with different diameters, which has important guiding significance for engineering design and experiment of hydrogen combustion system. |
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| Keywords: | Launch vehicle Particle trajectory model Hydrogen combustion system Simulation research |
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