Abstract: The evaporation characteristic of N 2O 4 and UDMH propellant in the air was disscussed The calculating model of the evaporation rate were introduced The experiment result and the model calculating result were basically identical

Key words: Liquid propellant;Evaporation;Nitrogen tetroxide;Unsymmetrical dimethylhydrazine;Toxicity;Mathematical model

摘要： 确评估火箭爆炸后残留于地面的有毒推进剂形成的毒气的危害范围 ,关键问题之一是弄清楚渗入泥土中有毒推进剂的蒸发规律。介绍了 N2 O4/ UDMH推进剂在大气中蒸发的实验研究结果以及一种推进剂蒸发速率计算数学模型 ,实验结果与模型计算结果基本一致

关键词: 液体推进剂;蒸发;四氧化二氮;偏二甲肼;毒性;数学模型