| 液体火箭爆炸地面有害气体生成与扩散分析 |
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| 引用本文： | 陈新华, 向四桂. 液体火箭爆炸地面有害气体生成与扩散分析[J]. 爆炸与冲击, 2005, 25(4): 355-360. doi: 10.11883/1001-1455(2005)04-0355-06 |
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| 作者姓名： | 陈新华 向四桂 |
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| 作者单位： | 总装备部装备指挥技术学院试验工程系，北京 101416 |
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| 摘 要： | 建立了自燃液体推进剂运载火箭爆炸时地面残余推进剂蒸发模型和产生的有害气体在大气中的扩散模型，给出了N2O4/UDMH液体推进剂爆炸产生的地面推进剂残留量、推进剂污染区直径、大气环境中地面残余N2O4和UDMH推进剂蒸发速率等参数的实验结果。利用该理论模型对大型运载火箭发生意外爆炸事故产生的地面残余推进剂蒸发时间和形成的有害气体危害范围进行了估算。该理论模型可为航天发射场制定安全防护措施提供有用的评估方法。
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| 关 键 词： | 爆炸力学 扩散 蒸发模型 推进剂 液体运载火箭 |
| 文章编号： | 1001-1455(2005)04-0355-06 |
| 收稿时间： | 2004-08-02 |
| 修稿时间： | 2004-12-06 |
Emergence and diffusion of the poisonous gas on the ground for liquid launch vehicle explosion |
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| CHEN Xin-hua, XIANG Si-gui. Emergence and diffusion of the poisonous gas on the ground for liquid launch vehicle explosion[J]. Explosion And Shock Waves, 2005, 25(4): 355-360. doi: 10.11883/1001-1455(2005)04-0355-06 |
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| Authors: | CHEN Xin-hua XIANG Si-gui |
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| Affiliation: | Academy of Equipment Command & Technology, Beijing 101416, China |
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| Abstract: | This paper presents a vaporization model of remnant propellant on the ground and a diffusion model of the poisonous gas for liquid hypergolic propellant launch vehicle explosion. The estimated mass of remnant propellant on the ground, the equivalent diameter of contaminated zone and the evaporation rate of N_2O_4 and UDMH are conducted for a N_2O_4/UDMH liquid propellant explosion respectively. The present models are applicable for predicting the vaporization (time) of remnant propellant on the ground and the contaminated range of poisonous gas for large scale liquid hypergolic propellant launch vehicle explosions. It provides an available evaluation method for safety measurement at the space vehicle launching site. |
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| Keywords: | mechanics of explosion diffusion vaporization model propellant liquid launch vehicle |
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