| 超临界环境下煤油和UDMH单滴燃烧现象 |
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| 引用本文： | 张蒙正,徐胜利.超临界环境下煤油和UDMH单滴燃烧现象[J].火箭推进,2013(5):1-6,22. |
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| 作者姓名： | 张蒙正 徐胜利 |
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| 作者单位： | [1]西安航天动力研究所,陕西西安710100 [2]清华大学航空航天学院,北京100012 |
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| 基金项目： | 国防基础科研（A0320060745） |
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| 摘 要： | 采用重活塞实验系统,对煤油和UDMH在超临界环境下的蒸发和燃烧现象进行了初步研究,结果表明:无论液态或者凝胶燃料,在超临界环境下均存在蒸发现象。在空气超临界环境下,煤油和UDMH均产生自燃现象。自燃呈现多点着火现象,类似于"森林火灾"模式,且持续时间较长。燃烧大致可分为蒸发、点火、燃烧前期和燃烧后期4个阶段。
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| 关 键 词： | 超临界环境 重炮活塞驱动器 燃料液滴 燃烧 |
Combustion phenomena of kerosene and UDMH droplets in supercritical environment |
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| ZHANG Meng-zheng,XU Sheng-li.Combustion phenomena of kerosene and UDMH droplets in supercritical environment[J].Journal of Rocket Propulsion,2013(5):1-6,22. |
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| Authors: | ZHANG Meng-zheng XU Sheng-li |
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| Institution: | 1. Xi＇ an Aerospace Propulsion Institute, Xi＇ an 710100, China; 2. School of Aerospace, Tsinghua University, Beijing 100012, China) |
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| Abstract: | The piston driver experimental system is used to perform a preliminary study on evapo- ration and combustion phenomena of kerosene and UDMH single fuel droplet in supercritical envi- ronment. The result shows that the kerosene or UDMH droplet will be vaporized in supercritical envi- ronment, it does not matter whether it is in liquid state or gel state. The spontaneous combustion phe- nomenon will happen when kerosene and UDMH droplet in the air supercritical environment. The spontaneous combustion appears in multi-dot simultaneous ignition at different position. It strongly resembles forest fire and lasts for along time. The combustion can be divided into four successive phases： evaporation, ignition, combustion prophase and combustion anaphase. |
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| Keywords: | supercritical environment piston driver fuel drop combustion |
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